| Date | Hour | Min | Species | Number | Location | By |
| 27/07/2010 | 10 | 15 | Harbour Porpoise | 2 | Marine Drive, Douglas. | The Dolphineers |
| 26/07/2010 | 15 | 20 | Harbour Porpoise | 4 | Port St Mary | The Dolphineers |
| 25/07/2010 | 8 | 12 | Harbour Porpoise | 1 | 200m east of Kallow Point | David Richards |
| 25/07/2010 | 7 | 50 | Harbour Porpoise | 2 | Crossing Castletown Bay, East to West in tideway. | John Cringle |
| 25/07/2010 | 7 | 10 | Harbour Porpoise | 1 | 1 mile SW of Chicken Rock | David Richards |
| 23/07/2010 | 13 | 40 | Harbour Porpoise | 2 | Calf North | The Dolphineers |
| 23/07/2010 | 13 | 5 | Harbour Porpoise | 3 | 4km off Peel castle | Mal. Kelly |
| 23/07/2010 | 12 | 40 | Risso's Dolphin | 3 | Calf North | The Dolphineers |
| 23/07/2010 | 8 | 15 | Harbour Porpoise | 2 | 500m out from the carpark, Port St Mary. | Mike Craine |
| 23/07/2010 | 7 | 50 | Harbour Porpoise | 4 | Sugarloaf | Steve Wright |
| 21/07/2010 | 10 | 55 | Harbour Porpoise | 3 | Calf East | The Dolphineers |
| 21/07/2010 | 10 | 35 | Harbour Porpoise | 1 | Niarbyl | Mal. Kelly, Foillan Beg |
| 21/07/2010 | 9 | 20 | Harbour Porpoise | 3 | Port Erin | Laura Hanley & Rob Parkin |
| 20/07/2010 | 19 | 0 | Harbour Porpoise | 3 | ledges port st mary | Janice Cooil |
| 20/07/2010 | 9 | 45 | Risso's Dolphin | 20+ | North side of the Calf | Tom Felce |
| 12/07/2010 | 21 | 15 | Minke Whale | 2 | Between Contrary Head and Niarbyl | Brian Maddrell |
| 12/07/2010 | 21 | 10 | Minke Whale | 1 | ~5 miles WNW of Dalby Point heading N | John Galpin |
| 12/07/2010 | 20 | 45 | Minke Whale | 1 | 3.5 miles WNW of Dalby Point | John Galpin |
| 12/07/2010 | 20 | 42 | Minke Whale | 1 | 2 miles NNW of Dalby Point | John Galpin |
| 12/07/2010 | 20 | 32 | Minke Whale | 1 | 2.5 miles NW of Dalby Point | John Galpin |
| 12/07/2010 | 20 | 30 | Risso's Dolphin | 18-20 | between Bay Stacka and South Harbour, Calf | Nina Shimmin |
| 12/07/2010 | 19 | 50 | Common Dolphin | 40+ | Breaching also seen | Brian Maddrell |
| 12/07/2010 | 14 | 50 | Harbour Porpoise | 3 | 1 mile west of Glenmaye | Ian Young Pegasus |
| 12/07/2010 | 14 | 35 | Harbour Porpoise | 4 | Off Peel breakwater | Ian Wilcock |
| 11/07/2010 | 17 | 20 | Harbour Porpoise | 2 | Outside the breakwater, infront of the Port Erin Marine Lab building | Christina Sergreant & Janet Hanley |
| 09/07/2010 | 20 | 5 | Risso's Dolphin | 6+ | 2 miles West of Bradda Head | Ian Young Pegasus |
| 06/07/2010 | 9 | 30 | Harbour Porpoise | 3 | Calf East | The Dolphineers |
| 05/07/2010 | 18 | 10 | Harbour Porpoise | 1 | 1 mile west of Devils Elbow | Ian Young Pegasus |
| 30/06/2010 | 8 | 0 | Harbour Porpoise | 2 | Marine Drive, Douglas. | The Dolphineers |
| 29/06/2010 | 21 | 0 | Harbour Porpoise | 2 | Cranstal | Nigel Fairclough |
| 29/06/2010 | 21 | 0 | Harbour Porpoise | 2 | Cranstal | Nigel Fairclough |
| 29/06/2010 | 21 | 0 | Harbour Porpoise | 2 | 1 mile NW of Dalby Point | John Galpin |
| 29/06/2010 | 20 | 50 | Harbour Porpoise | 4 | 3km off Bradda Head | Ian Young Pegasus |
| 29/06/2010 | 20 | 10 | Harbour Porpoise | 2 | West of Kitterland heading towards mouth of Sound. | Steve Wright |
| 29/06/2010 | 14 | 40 | Harbour Porpoise | 3 | Calf east | Tom Felce |
| 28/06/2010 | 12 | 15 | Harbour Porpoise | 2 | 400m NNE of Calf sound | Buster Nixon |
| 24/06/2010 | 17 | 27 | Harbour Porpoise | 1 | 2.5km off Fleshwick | Graham Hall |
| 24/06/2010 | 12 | 0 | Minke Whale | 1 | 750metres off Port Erin Bay | Graham Hall |
| 24/06/2010 | 11 | 0 | Risso's Dolphin | 4 | Beyond the chickens | The Dolphineers |
| 24/06/2010 | 11 | 0 | Risso's Dolphin | 7 | Off Marine Drive, between 300 and 1500 metres offshore | Tom Felce |
| 24/06/2010 | 11 | 0 | Risso's Dolphin | 7 | Marine Drive, Douglas. | The Dolphineers |
| 23/06/2010 | 11 | 0 | Harbour Porpoise | 1 | Half way between the Calf and Spanish Point | The Dolphineers |
| 21/06/2010 | 17 | 30 | Harbour Porpoise | 3 | Port Erin bay, close to mines | Alex Tawney |
| 21/06/2010 | 16 | 20 | Harbour Porpoise | 2 | Marine Drive, Douglas. | The Dolphineers |
| 21/06/2010 | 12 | 35 | Harbour Porpoise | 1 | 7km off Bradda Head | Manx Basking Shark Watch |
| 21/06/2010 | 12 | 15 | Harbour Porpoise | 3 | Port St Mary | The Dolphineers |
| 21/06/2010 | 12 | 15 | Harbour Porpoise | 2 | Port St Mary | The Dolphineers |
| 21/06/2010 | 12 | 3 | Minke Whale | 3 | Between Bradda Head and Niarbyl | Manx Basking Shark Watch |
| 21/06/2010 | 11 | 0 | Harbour Porpoise | 2 | Niarbyl | The Dolphineers |
| 21/06/2010 | 10 | 48 | Harbour Porpoise | 2 | South of the calf lighthouses | Manx Basking Shark Watch |
| 21/06/2010 | 9 | 5 | Harbour Porpoise | 8+ | Port St Mary | Graham Hall |
| 20/06/2010 | 16 | 30 | Harbour Porpoise | 2 | Calf of Man, east | The Dolphineers |
| 20/06/2010 | 16 | 0 | Harbour Porpoise | 2 | Off the Chasms | Ranulf Lucas |
| 19/06/2010 | 15 | 0 | Harbour Porpoise | 5 | Off Milner's Tower | Mark Potts |
| 16/06/2010 | 9 | 30 | Harbour Porpoise | 2 | Seen off the ledges, Port St Mary | Cindy Harness |
| 15/06/2010 | 10 | 45 | Harbour Porpoise | 1 | SW direction swim | The Dolphineers |
| 15/06/2010 | 9 | 0 | Harbour Porpoise | 4 | Seen off the ledges, Port St Mary | Cindy Harness |
| 15/06/2010 | 8 | 30 | Harbour Porpoise | 1 | 1.5km off Marine Drive | The Dolphineers |
| 14/06/2010 | 21 | 15 | Harbour Porpoise | 1 | West of Glen Maye | Brian Maddrell |
| 14/06/2010 | 21 | 0 | Minke Whale | 1 | Offshore between Contrary Head and Niarbyl | Brian Maddrell |
| 14/06/2010 | 18 | 10 | Harbour Porpoise | 2 | West Of Dalby | Brian Maddrell |
| 14/06/2010 | 16 | 45 | Risso's Dolphin | 8 | East of the Calf | The Dolphineers |
| 14/06/2010 | 16 | 15 | Harbour Porpoise | 2 | East of the Calf | The Dolphineers |
| 14/06/2010 | 16 | 0 | Harbour Porpoise | 1 | East of the Calf | The Dolphineers |
| 12/06/2010 | 20 | 30 | Harbour Porpoise | 6 | Cranstal area & just south of this | Nigel Fairclough |
| 07/06/2010 | 10 | 0 | Risso's Dolphin | 5 | 10.5 nm south of douglas head | David M Jones |
| 03/06/2010 | 11 | 30 | Risso's Dolphin | 4 | Off the Stack (Calf) | Graham Hall |
| 03/06/2010 | 11 | 15 | Harbour Porpoise | 4 | The Calf sound | Graham Hall |
| 02/06/2010 | 16 | 0 | Harbour Porpoise | 5 | Port St Mary | The Dolphineers |
| 02/06/2010 | 14 | 15 | Harbour Porpoise | 1 | Marine Drive, Douglas. | The Dolphineers |
| 02/06/2010 | 12 | 0 | Minke Whale | 1 | 8 miles S of Port St Mary | Martin Lambden |
| 01/06/2010 | 18 | 15 | Harbour Porpoise | 1 | Port St. Mary ledges | The Dolphineers |
| 01/06/2010 | 17 | 45 | Harbour Porpoise | 3 | Port St. Mary ledges | The Dolphineers |
| 01/06/2010 | 17 | 30 | Harbour Porpoise | 2 | Port St. Mary ledges | The Dolphineers |
| 01/06/2010 | 16 | 45 | Harbour Porpoise | 1 | Calf West | The Dolphineers |
| 01/06/2010 | 16 | 0 | Harbour Porpoise | 1 | Calf West | The Dolphineers |
| 01/06/2010 | 15 | 30 | Harbour Porpoise | 2 | 1.6 miles North Contrary Head | Mal. Kelly, Foillan Beg |
| 31/05/2010 | 14 | 0 | Minke Whale | 1 | 9 miles south of PSM | David M Jones |
| 31/05/2010 | 11 | 30 | Risso's Dolphin | 6 | 2.5miles west of glenmaye | Ian Young Pegasus |
| 28/05/2010 | 12 | 0 | Harbour Porpoise | 1 | Marine Drive, Douglas. | The Dolphineers |
| 26/05/2010 | 10 | 10 | Risso's Dolphin | 4 | | Tom Felce |
| 26/05/2010 | 9 | 10 | Harbour Porpoise | 1 | Port St Mary | The Dolphineers |
| 26/05/2010 | 9 | 0 | Harbour Porpoise | 1 | East of Calf of Man | The Dolphineers |
| 23/05/2010 | 20 | 0 | Orca/Risso's Dolphin | 1 | 300m off Toll Gates Marine Drive Douglas | David Buttery |
| 23/05/2010 | 15 | 0 | Harbour Porpoise | 3 | Port St. Mary | Alan Ratcliffe |
| 23/05/2010 | 14 | 15 | Risso's Dolphin | 2-3 | heading northwards past Langness 500m offshore | Erica Scott |
| 23/05/2010 | 11 | 15 | Harbour Porpoise | 1 | Port St. Mary Ledges | The Dolphineers |
| 23/05/2010 | 10 | 30 | Harbour Porpoise | 1 | Port St. Mary Ledges | The Dolphineers |
| 23/05/2010 | 10 | 30 | Minke Whale | 3 | 10 miles south of Langness | mary mcdermott |
| 23/05/2010 | 10 | 0 | Harbour Porpoise | 1 | 8 miles south of Langness | mary mcdermott |
| 23/05/2010 | 9 | 15 | Harbour Porpoise | 3 | Port St. Mary ledges | The Dolphineers |
| 23/05/2010 | 8 | 55 | Harbour Porpoise | 1 | 4.5 miles off Contrary Head | Mal. Kelly, Foillan Beg |
| 22/05/2010 | 19 | 30 | Unidentified Large Cetacean | 1 | Off Bradda Head | paul redford |
| 22/05/2010 | 18 | 15 | Harbour Porpoise | 3 | Peel Castle | The Dolphineers |
| 22/05/2010 | 16 | 10 | Harbour Porpoise | 2 | 3 miles west of Glenmaye | Ian Young Pegasus |
| 22/05/2010 | 16 | 0 | Harbour Porpoise | 4 | 3 miles west of Niarbyl | Ian Young Pegasus |
| 22/05/2010 | 14 | 40 | Harbour Porpoise | 1 | 1.5 miles west of Elby point | Ian Young Pegasus |
| 22/05/2010 | 14 | 0 | Minke Whale | 1 | 5km NW of Peel | Mal. Kelly, Foillan Beg |
| 22/05/2010 | 10 | 55 | Harbour Porpoise | 1 | SW of Contrary Head | Mal. Kelly, Foillan Beg |
| 22/05/2010 | 9 | 30 | Harbour Porpoise | 1 | Niarbyl | The Dolphineers |
| 22/05/2010 | 9 | 5 | Risso's Dolphin | 1 | 100 metres off Bradda Head | Andrew Ferrer |
| 21/05/2010 | 20 | 30 | Harbour Porpoise | 1 | 1 mile of Dalby | Ian Young Pegasus |
| 21/05/2010 | 19 | 55 | Harbour Porpoise | 2 | 1 Mile off Glenmaye | Ian Young Pegasus |
| 21/05/2010 | 19 | 50 | Harbour Porpoise | 1 | Maughold Head - 300m east of lighthouse | Steve Wright |
| 21/05/2010 | 19 | 30 | Harbour Porpoise | 2 | 1 mile off Knockaloe | Ian Young Pegasus |
| 21/05/2010 | 19 | 5 | Harbour Porpoise | 2 | 500m NW of Dalby Point | John Galpin |
| 21/05/2010 | 19 | 0 | Harbour Porpoise | 4 | Off Spanish head | Mrs Linda Winstanley |
| 21/05/2010 | 16 | 40 | Harbour Porpoise | 1 | The Ledges, Port St. Mary | The Dolphineers |
| 21/05/2010 | 16 | 30 | Harbour Porpoise | 1 | The Sound, West side | The Dolphineers |
| 21/05/2010 | 16 | 30 | Harbour Porpoise | 1 | The Sound, West side | The Dolphineers |
| 21/05/2010 | 16 | 25 | Harbour Porpoise | 0 | The ledges, Port st. Mary | The Dolphinees |
| 21/05/2010 | 16 | 25 | Harbour Porpoise | 2 | The Ledges, Port St. Mary | The Dolphineers |
| 21/05/2010 | 15 | 40 | Harbour Porpoise | 1 | The Ledges, Port St. Mary | The Dolphineers |
| 21/05/2010 | 15 | 10 | Harbour Porpoise | 4 | The ledges, Port St. Mary | The Dolphineers |
| 21/05/2010 | 14 | 40 | Harbour Porpoise | 4 | The Ledges, Port St. Mary | The Dolphineers |
| 21/05/2010 | 14 | 40 | Harbour Porpoise | 2 | 100m off the ledges, Port St. Mary | The Dolphineers |
| 21/05/2010 | 13 | 45 | Harbour Porpoise | 1 | Marine Drive | The Dolphineers |
| 21/05/2010 | 11 | 30 | Harbour Porpoise | 3 | just off Perwick bay | Martin Lambden |
| 20/05/2010 | 18 | 55 | Harbour Porpoise | 1 | Niarbyl - 500m north of point of tail | Steve Wright |
| 19/05/2010 | 19 | 4 | Harbour Porpoise | 1 | 600m NW off Dalby Point heading south | John Galpin |
| 18/05/2010 | 11 | 30 | Unidentified Small Cetacean | 1 | Just south of Niarbyl | Dave Callaghan |
| 17/05/2010 | 9 | 45 | Unidentified Small Cetacean | 1 | Niarbyl | The Dolphineers |
| 16/05/2010 | 20 | 14 | Harbour Porpoise | 3 | Seen from car park on Kallow Point. Port St Mary | Brian Maddrell |
| 16/05/2010 | 17 | 30 | Harbour Porpoise | 1 | South of Contrary Head | Brian Maddrell |
| 16/05/2010 | 14 | 45 | Risso's Dolphin | 3 | Marine Drive, halfway between arches and 1st gate. | Darren & Terri |
| 16/05/2010 | 14 | 40 | Common Dolphin | 2-3 | The Arches, Marine Drive | Mike Bell |
| 16/05/2010 | 14 | 30 | Harbour Porpoise | 1 | 1.5 miles NW Contrary Head | Mal. Kelly, Foillan Beg |
| 15/05/2010 | 7 | 30 | Harbour Porpoise | 2 | Marine Drive - Northern road closure point (Walberry) - 300m offshore | Steve Wright |
| 15/05/2010 | 7 | 20 | Harbour Porpoise | 3 | Marine Drive - Arches - 200m offshore | Steve Wright |
| 14/05/2010 | 15 | 45 | Harbour Porpoise | 2 | Calf of Man (East) | Tom Felce |
| 14/05/2010 | 15 | 45 | Harbour Porpoise | 1 | Calf of Man (East) | Tom Felce |
| 14/05/2010 | 13 | 15 | Harbour Porpoise | 1 | The Arches, Marine Drive | Dolphineers |
| 14/05/2010 | 11 | 15 | Harbour Porpoise | 2 | Calf of Man (East) | Tom Felce |
| 11/05/2010 | 16 | 15 | Harbour Porpoise | 3 | Close inshore to Marine Drive | The Dolphineers |
| 11/05/2010 | 15 | 45 | Harbour Porpoise | 1 | Calf of Man (East) | Tom Felce |
| 11/05/2010 | 15 | 15 | Harbour Porpoise | 2 | Calf of Man (East) | Tom Felce |
| 11/05/2010 | 15 | 15 | Harbour Porpoise | 2 | 1km offshore, Marine Drive | The Dolphineers |
| 11/05/2010 | 14 | 45 | Harbour Porpoise | 4 | Marine Drive | The Dolphineers |
| 09/05/2010 | 11 | 15 | Harbour Porpoise | 1 | Port St Mary | Tom Felce |
| 09/05/2010 | 10 | 15 | Harbour Porpoise | 1 | Port St Mary | Tom Felce |
| 07/05/2010 | 16 | 20 | Risso's Dolphin | 2 | 50m from the 'old boating lake' carpark, Port St Mary | Mike Craine |
| 06/05/2010 | 19 | 10 | Harbour Porpoise | 1 | 400-500m off Alfred pier, PSM | Terry Holt |
| 06/05/2010 | 8 | 5 | Harbour Porpoise | 7 | Outer Carrick Bay | Terry Holt |
| 06/05/2010 | 7 | 20 | Harbour Porpoise | 4 | 2 south of the Carrick rock and 2 close to the pier, PSM | Terry Holt |
| 06/05/2010 | 7 | 10 | Harbour Porpoise | 2 | SSE of Carrick rock, PSM | Terry Holt |
| 06/05/2010 | 7 | 10 | Risso's Dolphin | 1 | around 700m off Carrick rock, full breaching about five times | Terry Holt |
| 06/05/2010 | 6 | 5 | Harbour Porpoise | 1 | 500m south of Carrick Rock, PSM | Terry Holt |
| 06/05/2010 | 6 | 5 | Risso's Dolphin | 1 | about 700m south of Carrick rock, PSM | Terry Holt |
| 05/05/2010 | 14 | 50 | Harbour Porpoise | 1 | Calf of Man (East) | Tom Felce |
| 05/05/2010 | 14 | 50 | Harbour Porpoise | 1 | Calf of Man (East) | Tom Felce |
| 05/05/2010 | 14 | 35 | Harbour Porpoise | 1 | Calf of Man (East) | Tom Felce |
| 05/05/2010 | 14 | 35 | Harbour Porpoise | 1 | Calf of Man (East) | Tom Felce |
| 05/05/2010 | 14 | 35 | Harbour Porpoise | 1 | Calf of Man (East) | Tom Felce |
| 05/05/2010 | 14 | 20 | Harbour Porpoise | 1 | Calf of Man (East) | Tom Felce |
| 05/05/2010 | 14 | 20 | Harbour Porpoise | 1 | Calf of Man (East) | Tom Felce |
| 05/05/2010 | 14 | 5 | Harbour Porpoise | 1 | Calf of Man (East) | Tom Felce |
| 05/05/2010 | 13 | 45 | Harbour Porpoise | 1 | Calf of Man (East) | Tom Felce |
| 05/05/2010 | 13 | 35 | Harbour Porpoise | 3 | 500m off the Ledges | Laura Solloway |
| 05/05/2010 | 13 | 30 | Harbour Porpoise | 3 | Port St Mary | Tom Felce |
| 05/05/2010 | 13 | 5 | Harbour Porpoise | 1 | Calf of Man (East) | Tom Felce |
| 05/05/2010 | 12 | 50 | Harbour Porpoise | 2 | Between 100m and 500m off the Ledges, PSM | Laura Solloway |
| 05/05/2010 | 12 | 45 | Harbour Porpoise | 2 | Port St Mary | Tom Felce |
| 04/05/2010 | 19 | 45 | Harbour Porpoise | 2 | viewed from kallow point PSM | sue whittaker |
| 04/05/2010 | 15 | 30 | Harbour Porpoise | 2 | South of the Arches, Marine Drive | Dolphineers |
| 03/05/2010 | 13 | 0 | Harbour Porpoise | 1 | Calf of Man, south of Kitterland. | The Dolphineers |
| 03/05/2010 | 12 | 45 | Harbour Porpoise | 2 | Calf of Man, south of Kitterland. | The Dolphineers |
| 03/05/2010 | 11 | 30 | Harbour Porpoise | 1 | off the ledges, PSM | Tom Felce |
| 01/05/2010 | 14 | 10 | Harbour Porpoise | 1 | 250 m from Arches Marine Drive | Patrick Burden |
| 29/04/2010 | 14 | 20 | Killer Whale | 2 | 30 miles west of Peel. | Tony Summers |
| 26/04/2010 | 10 | 10 | Harbour Porpoise | 1 | Just off Marine Drive, beyond the Arches | Tom Felce |
| 24/04/2010 | 18 | 30 | Harbour Porpoise | 3 | Perwick Bay | Martin Lambden |
| 24/04/2010 | 14 | 0 | Harbour Porpoise | 1 | northern edge of Warts Bank | Martin Lambden |
| 22/04/2010 | 15 | 30 | Harbour Porpoise | 1 | West of the Calf, near Kione Beg | Tom Felce |
| 22/04/2010 | 13 | 30 | Harbour Porpoise | 2 | South of the sound, between Burroo Ned and Calf | Tom Felce |
| 22/04/2010 | 13 | 0 | Harbour Porpoise | 1 | 100m East of the Carrick, Port St Mary | Chris Tovell |
| 22/04/2010 | 12 | 0 | Harbour Porpoise | 2 | Between Chicken Rock and the Calf | Chris Tovell |
| 22/04/2010 | 10 | 0 | Harbour Porpoise | 2 | Just off the Ledges, Port St Mary | Tom Felce |
| 22/04/2010 | 9 | 30 | Harbour Porpoise | 1 | Off the Ledges, PSM | Tom Felce |
| 22/04/2010 | 9 | 0 | Harbour Porpoise | 1 | Just off the Ledges, Port St Mary | Tom Felce |
| 18/04/2010 | 17 | 0 | Harbour Porpoise | 1 | From the Calf of Man, heading south towards the Burroo | Sarah & Gavin, Calf Wardens |
| 17/04/2010 | 14 | 20 | Harbour Porpoise | 2 | Dreswick Point - Langness - 100m offshore | Steve Wright |
| 16/04/2010 | 14 | 10 | Harbour Porpoise | 1 | Just off Niarbyl | Tom Felce |
| 12/04/2010 | 19 | 10 | Bottlenose Dolphin | 15 | 200m off Spanish Head | Buster Nixon |
| 12/04/2010 | 18 | 20 | Bottlenose Dolphin | 15 | Passing slowly past Niarbyl | Teri |
| 12/04/2010 | 10 | 0 | Harbour Porpoise | 2 | 2n miles East of Ledges PSM | Chris Tovell |
| 11/04/2010 | 17 | 45 | Harbour Porpoise | 9 | Seen from the Calf, far off the Burroo | Sarah & Gavin, Calf Wardens |
| 07/04/2010 | 16 | 40 | Harbour Porpoise | 4-6 | Just off the Arches, Marine Drive | Tom Felce |
| 04/04/2010 | 14 | 0 | Harbour Porpoise | 1 | Spotted from Marine Drive | Shelley & Chris Kilpatrick |
| 02/04/2010 | 17 | 0 | Risso's Dolphin | 1 | Seen from the Calf, passing in front of the Chickens and heading north | Sarah Harris, Calf Warden |
| 11/03/2010 | 13 | 20 | Risso's Dolphin | 2 | Marine Drive from Walberry - circled twice then headed north. | Steve Wright |
| 10/03/2010 | 9 | 15 | Harbour Porpoise | 1 | Off the Ledges, PSM | Tom Felce |
| 09/03/2010 | 13 | 5 | Harbour Porpoise | 2 | 20m out from The Arches Marine Drive | Mike Craine |
| 26/02/2010 | 17 | 0 | Bottlenose Dolphin | 40-50 | Between Dalby and Glen Maye | Brian Maddrell |
| 21/02/2010 | 11 | 0 | Bottlenose Dolphin | 30-40 | Also bow riding of a fishing vessel, very active group | Peter McEvoy |
| 21/02/2010 | 9 | 0 | Bottlenose Dolphin | 30-40 | Elby Point, Dalby | Mel Quayle |
| 21/02/2010 | 9 | 0 | Bottlenose Dolphin | 30-40 | 300m offshore Dalby Point to Glen Maye, heading N | Valerie Galpin |
| 20/02/2010 | 13 | 50 | Harbour Porpoise | 1 | The Arches, Marine Drive | Tom Felce |
| 19/02/2010 | 10 | 55 | Harbour Porpoise | 1 | The Arches, Marine Drive | Tom Felce |
| 18/02/2010 | 8 | 15 | Bottlenose Dolphin | 8-10 | Half a mile off Fenella Beach, Peel | Steve Black |
| 16/02/2010 | 13 | 25 | Harbour Porpoise | 4 | The Arches, Marine Drive | Tom Felce |
| 14/02/2010 | 9 | 15 | Bottlenose Dolphin | 30+ | From Ben my Chree, 20 miles offshore | JANICEC AND RICHARD COOIL |
| 07/02/2010 | 11 | 15 | Bottlenose Dolphin | 30+ | 100 metres of Kallow Point, PSM | Michael Kneale |
| 07/02/2010 | 10 | 10 | Bottlenose Dolphin | 50+ | 25mtrs offshore the Stack, Scarlett Point | John Cringle |
| 06/02/2010 | 16 | 0 | Harbour Porpoise | 2 | Just south of Glen Maye | Brian Maddrell |
| 06/02/2010 | 14 | 0 | Harbour Porpoise | 1 | 500 mts west of Langness | Martin Lambden |
| 24/01/2010 | 16 | 0 | Harbour Porpoise | 1 | SW of Burrows on the Calf of Man | The Dolphineers |
| 24/01/2010 | 10 | 34 | Bottlenose Dolphin | 12 | just off South Harbour, Calf of Man, E of the Burroo | Michael Kneale |
| 09/01/2010 | 12 | 30 | Minke Whale | 1 | Off Peel Hill | Trevor Smith |
| 08/01/2010 | 15 | 10 | Bottlenose Dolphin | 10 | 100 metres off Kallow Point | Michael Kneale |
| 01/01/2010 | 11 | 15 | Harbour Porpoise | 1 | Port St Mary | Tom Felce |
| 10/12/2009 | 16 | 0 | Harbour Porpoise | 1 | Laxey bay - Clay head | Craig Whalley |
| 10/12/2009 | 14 | 45 | Bottlenose Dolphin | 80-100 | Douglas Harbour - Arches | Tom Felce |
| 10/12/2009 | 11 | 45 | Bottlenose Dolphin | 20+ | Breaching and feeding Laxey Bay | Shane Stigant |
| 08/12/2009 | 11 | 0 | Bottlenose Dolphin | 50+ | Crossing Douglas bay heading south. | Graham Bayliss |
| 08/11/2009 | 16 | 45 | Bottlenose Dolphin | ~100 | Swimming across Douglas Bay north to south | Christine Pickering |
| 08/11/2009 | 16 | 15 | Bottlenose Dolphin | 50+ | Bow riding and following boat from Groudle to Douglas | Jim Shutler |
| 08/11/2009 | 16 | 0 | Bottlenose Dolphin | 50+ | 1 mile off Groudle north of Douglas | Sailing for the Disabled |
| 08/11/2009 | 15 | 45 | Minke Whale | 2 | Bulgham Bay towards Dhoon - 0.5 to 1 mile offshore | Steve Wright |
| 27/10/2009 | 7 | 35 | Bottlenose Dolphin | 20+ | Between Niarbyl and Dalby Point | Allan Kermode |
| 26/10/2009 | 16 | 45 | Bottlenose Dolphin | 6 | Just at the end of Niarbyl reef | Allan Kermode |
| 26/10/2009 | 16 | 0 | Bottlenose Dolphin | 40+ | Langness heading to PSM | Sara and Ed Jeffers |
| 26/10/2009 | 11 | 30 | Bottlenose Dolphin | 80-100 | 75m off Arches, Marine Drive | Tom Felce |
| 26/10/2009 | 10 | 15 | Bottlenose Dolphin | 8 | North of Laxey around Bulgham Bay | Rita Steele |
| 15/10/2009 | 17 | 20 | Dolphin Species | 2-3 | 200 yards off Little Ness, slowly moving south | Phil Sharratt |
| 15/10/2009 | 14 | 45 | Minke Whale | 1 | Niarbyl bay | Carl Smith and Mike Ritchie |
| 15/10/2009 | 13 | 13 | Minke Whale | 1 | 600m off The Arches, Marine Drive | Tom Felce |
| 15/10/2009 | 13 | 5 | Minke Whale | 1 | Half mile off Little Ness, Marine Drive. | Peter Quirk |
| 15/10/2009 | 11 | 15 | Minke Whale | 2 | 0.5 and 2 miles SE Toll Gate Marine Drive | Stephen James |
| 14/10/2009 | 18 | 44 | Harbour Porpoise | 2 | 500m NW of Dalby Point | Brian Maddrell |
| 14/10/2009 | 18 | 23 | Harbour Porpoise | 4 | 1.5 miles NW of Dalby Point | Brian Maddrell |
| 14/10/2009 | 18 | 15 | Harbour Porpoise | 5 | 1 mile W of Dalby Point | Brian Maddrell |
| 14/10/2009 | 17 | 52 | Harbour Porpoise | 4 | 0.5 miles NW of Dalby Point | Brian Maddrell |
| 14/10/2009 | 17 | 50 | Harbour Porpoise | 5 | 3.5 miles WNW of Dalby Point | Brian Maddrell |
| 14/10/2009 | 17 | 27 | Harbour Porpoise | 4 | 900m W of Dalby Point | Brian Maddrell |
| 14/10/2009 | 17 | 25 | Minke Whale | 1 | ~3 miles off Douglas, seen from the Ben my Chree | Jenny Williamson |
| 14/10/2009 | 17 | 25 | Harbour Porpoise | 8 | 400m W of Dalby Point | Brian Maddrell |
| 14/10/2009 | 17 | 21 | Harbour Porpoise | 20 | 0.5 miles W of Dalby Point | Brian Maddrell |
| 14/10/2009 | 17 | 17 | Harbour Porpoise | 12 | 3 miles West of Dalby Point | Brian Maddrell |
| 14/10/2009 | 17 | 13 | Harbour Porpoise | 15+ | 3 miles NW of Dalby Point | Brian Maddrell |
| 14/10/2009 | 17 | 12 | Harbour Porpoise | 9 | 3 miles West of Dalby Point | Brian Maddrell |
| 14/10/2009 | 17 | 10 | Harbour Porpoise | 4 | 0.5miles NW Dalby Point | Brian Maddrell |
| 14/10/2009 | 16 | 35 | Minke Whale | 1 | 700m off the Ledges, PSM | Tom Felce |
| 14/10/2009 | 15 | 15 | Minke Whale | 1 | 600m off the Arches, Marine drive | Tom Felce |
| 14/10/2009 | 11 | 55 | Minke Whale | 1 | About 1 mile off Pigeon Stream, Marine Drive. | Peter Quirk |
| 14/10/2009 | 10 | 30 | Minke Whale | 2 | Just off Toll gates, Marine Drive, Douglas | Brian Stewart |
| 14/10/2009 | 10 | 15 | Minke Whale | 1 | Off Marine Drive | Stephen James |
| 14/10/2009 | 10 | 15 | Minke Whale | 1 | 0.5 miles SE Toll Gate | Stephen James |
| 13/10/2009 | 17 | 27 | Harbour Porpoise | 12 | 500m NW of Dalby Point | Brian Maddrell |
| 12/10/2009 | 13 | 50 | Minke Whale | 1 | 1 mile off Little Ness | Robin Wootton |
| 10/10/2009 | 16 | 0 | Minke Whale | 2 | 7 miles E of Maughold Head | Barry Cubbon |
| 10/10/2009 | 15 | 45 | Minke Whale | 1 | 400m off Tollgates, Marine Drive | Paul Carney |
| 08/10/2009 | 18 | 30 | Minke Whale | 1 | Lunge feeding at surface, 200 m off shore Laxey Hd to Bulgham bay | Shane Stigant |
| 08/10/2009 | 11 | 45 | Minke Whale | 3 | 6 miles S of Douglas | Tom Bryan-Brown |
| 01/10/2009 | 13 | 0 | Minke Whale | 1 | 15m off Langness Point | Ruth Kirk |
| 26/09/2009 | 14 | 30 | Minke Whale | 1 | Feeding~30m off Black Head and Bay Stacka | Geordy Caren |
| 17/09/2009 | 17 | 15 | Harbour Porpoise | 4 | 2km NW of Dalby Point | Brian Maddrell |
| 17/09/2009 | 17 | 0 | Harbour Porpoise | 3 | 4.5km NW of Dalby Point | Brian Maddrell |
| 17/09/2009 | 15 | 0 | Harbour Porpoise | 1 | 15 miles NE of Douglas | Chris Tovell |
| 17/09/2009 | 14 | 0 | Harbour Porpoise | 3 | 4 miles West of St Bees Head, Cumbria | Chris Tovell |
| 14/09/2009 | 18 | 44 | Harbour Porpoise | 2 | 400m off Dalby Point | Brian Maddrell |
| 11/09/2009 | 15 | 30 | Harbour Porpoise | 3 | 12 miles West of Peel | Chris Tovell |
| 11/09/2009 | 13 | 30 | Harbour Porpoise | 9 | 4 miles into Strangford Lough | Chris Tovell |
| 08/09/2009 | 18 | 45 | Minke Whale | 1 | Middle of Laxey bay | Shane Stigant |
| 07/09/2009 | 19 | 10 | Dolphin Species | 1 | Multiple breaching 200m from Bradda Head | Carol Woodall |
| 30/08/2009 | 19 | 10 | Minke Whale | 1 | Bulgham Bay | John Cowin |
| 29/08/2009 | 18 | 45 | Minke Whale | 1 | Laxey Head close to the rocks | Shane Stigant |
| 29/08/2009 | 13 | 5 | Minke Whale | 2-3 | Off Dhoon & Bulgham Bays, breaching observed. | John, Lorraine & Craig Donnelly |
| 28/08/2009 | 17 | 20 | Minke Whale | 1 | Bulgham Bay/Carrick Roayrt | John Cowin |
| 27/08/2009 | 7 | 50 | Minke Whale | 1 | Just off shore by 'never-ending' curve near Laxey | Vicky Taylor |
| 22/08/2009 | 18 | 42 | Minke Whale | 2 | 1km NW of Dalby Point | John Galpin |
| 22/08/2009 | 18 | 30 | Harbour Porpoise | 2 | 800m NW Dalby Point | Brian Maddrell |
| 18/08/2009 | 11 | 45 | Harbour Porpoise | 1 | N of Dalby pt | Brian Maddrell |
| 17/08/2009 | 18 | 5 | Harbour Porpoise | 1 | NW of Dalby Pt | Brian Maddrell |
| 13/08/2009 | 13 | 35 | Mola Mola - Tropical Sunfish | 1 | Near Bay Fine, near Sound | Mary McDermott |
| 13/08/2009 | 12 | 50 | Risso's Dolphin | 2 | 8 miles West of Peel | Mary McDermott |
| 13/08/2009 | 12 | 50 | Minke Whale | 1 | 8 miles West of Peel | Mary McDermott |
| 13/08/2009 | 11 | 0 | Harbour Porpoise | 31 | Box 5, SW of Calf | Manx Cetacean Surveys |
| 13/08/2009 | 10 | 0 | Minke Whale | 6 | Box 5, SW of Calf | Manx Cetacean Surveys |
| 13/08/2009 | 9 | 0 | Risso's Dolphin | 5 | Box 5, SW of Calf | Manx Cetacean Surveys |
| 10/08/2009 | 10 | 30 | Minke Whale | 1 | .5 mile off Contrary Head | Mal. Kelly, Foillan Beg |
| 09/08/2009 | 15 | 0 | Minke Whale | 1 | .5 mile NW Contrary Head | Mal. Kelly, Foillan beg |
| 09/08/2009 | 14 | 45 | Minke Whale | 2 | 1/2 mile west of Contrary Head | Jane Young |
| 08/08/2009 | 13 | 25 | Harbour Porpoise | 1 | 20m off Bradda Head | Ian Judd |
| 07/08/2009 | 14 | 0 | Risso's Dolphin | 1 | Breaching fully out the water ~ 8ft high, 30m off Douglas Lighthouse | Kevin Quilliam |
| 06/08/2009 | 17 | 15 | Harbour Porpoise | 1 | 800m NW of Dalby Point | John Galpin |
| 06/08/2009 | 15 | 5 | Harbour Porpoise | 2 | Port Erin - Mouth of bay heading towards Bradda Head | Steve Wright |
| 06/08/2009 | 13 | 5 | Risso's Dolphin | 4 -5 | Tail slapping 12 miles S of Port St Mary | Tim Pilcher |
| 05/08/2009 | 18 | 25 | Harbour Porpoise | 2 | 500m NW of Dalby Pt | John Galpin |
| 05/08/2009 | 12 | 45 | Minke Whale | 1 | Full breach, just off shore, Niarbyl, | Abbe Moore |
| 26/07/2009 | 11 | 15 | Unidentified Large Cetacean | 1 | 200m North side Garwick Bay | Stephen James |
| 25/07/2009 | 19 | 30 | Unidentified Large Cetacean | 1 | 300m off Bradda Head | Lauren Beard |
| 25/07/2009 | 15 | 30 | Killer Whale | 1 | Full breach close to shore by Peel castle | Katie Young |
| 25/07/2009 | 14 | 25 | Killer Whale | 1 | Full breaching, 1 mile N of Dalby Point | Stuart and Heather Blackley |
| 25/07/2009 | 14 | 0 | Killer Whale | 1 | Full breaching, just N of Niarbyl | Stuart and Heather Blackley |
| 25/07/2009 | 13 | 30 | Risso's Dolphin | 1 | Breaching 1 mile S Dreswick Pt, Langness. | John Galpin & Tom Felce |
| 25/07/2009 | 12 | 50 | Unidentified Large Cetacean | 1 | Breaching 2 miles NW of Bradda Head | John Galpin & Tom Felce |
| 25/07/2009 | 12 | 15 | ULC - poss Minke | 1 | Full breaching, 1 mile S of Niarbyl | Ian and Jane Young - Pegasus |
| 25/07/2009 | 7 | 0 | Harbour Porpoise | 2 | Near the chapel on Fort Island, Langness | David Smith |
| 24/07/2009 | 14 | 25 | Harbour Porpoise | 2 | N end of Langness, 30m off shore | John Galpin & Tom Felce |
| 20/07/2009 | 11 | 0 | Risso's Dolphin | 10+ | 200m off Peel Headlands swimming N | Justine Shepherd |
| 19/07/2009 | 16 | 30 | Risso's Dolphin | 5 | Off Peel breakwater, heading N | Katie Young |
| 19/07/2009 | 13 | 30 | Risso's Dolphin | 5 | Heading S, 2miles SW of Niarbyl | Ian and Jane Young - Pegasus |
| 19/07/2009 | 13 | 0 | Risso's Dolphin | 5 | 1.5 miles W of Niarbyl heading S | John Galpin NWDW Watch |
| 19/07/2009 | 12 | 45 | Risso's Dolphin | 7 | Breaching at the Sound, between main land and Kitterland, NW. side | Eleanor Stone - NWDW Watch |
| 16/07/2009 | 18 | 30 | Breaching ULC - poss Humpback | 1 | 1200m off Peel breakwater | Bobby and Marlyn Bowie - Manx Sea Quest |
| 16/07/2009 | 18 | 0 | Harbour Porpoise | 1 | Marine Drive - 500m east of Little Ness | Steve Wright |
| 16/07/2009 | 13 | 35 | Harbour Porpoise | 1 | 25m off Fort Island, Langness | Shane Stigant |
| 16/07/2009 | 12 | 45 | Risso's Dolphin | 5 | 75m NE of Fort Island, Langness, heading to Port Soderick | Shane Stigant |
| 15/07/2009 | 11 | 18 | Harbour Porpoise | 1 | 300m NW of Dalby Point | John Galpin |
| 15/07/2009 | 7 | 25 | Harbour Porpoise | 1 | 500m W of Dalby Pt | Brian Maddrell |
| 12/07/2009 | 12 | 30 | Harbour Porpoise | 3 | The Sound - 200m west side of Kitterland at the Sound | Steve Wright |
| 06/07/2009 | 17 | 50 | Harbour Porpoise | 1 | 5km NW of Dalby Point | Brian Maddrell |
| 06/07/2009 | 17 | 40 | Harbour Porpoise | 1 | 450m W of Dalby Point | Brian Maddrell |
| 05/07/2009 | 14 | 0 | Harbour Porpoise | 1 | In between Chicken Rock and the Sound | Tommy Bowles |
| 05/07/2009 | 10 | 30 | Harbour Porpoise | 2 | 200m W of Sound | Ian Enlander |
| 04/07/2009 | 12 | 0 | Common Dolphin | 2 | 1 mile east Herring Tower, Langness. | Mike Craine |
| 02/07/2009 | 16 | 15 | Harbour Porpoise | 9 | Various locations along ferry route, Belfast/Douglas | Ian Enlander |
| 01/07/2009 | 20 | 40 | Risso's Dolphin | 12+ | 150 m ENE Fort Island close to the rip current, Langness. | Erica and Alastair Scott |
| 01/07/2009 | 19 | 0 | Harbour Porpoise | 3 | Langness Point | Stuart Lyon |
| 01/07/2009 | 18 | 15 | Harbour Porpoise | 1 | Port St Mary - 400m east from Ledges | Steve Wright |
| 01/07/2009 | 11 | 45 | Harbour Porpoise | 9 | 2.5 miles off Elby Point | Mal. Kelly, Foillan beg |
| 01/07/2009 | 11 | 20 | Harbour Porpoise | 3 | 2.64 miles off Elby Point | Mal. Kelly, Foillan Beg |
| 01/07/2009 | 11 | 0 | Harbour Porpoise | 7 | 1.17 miles off Cronk ny Airy Laa | Mal. Kelly, Foillan Beg |
| 30/06/2009 | 20 | 30 | Risso's Dolphin | 6 | 1/2 Nm South of Burroo (Drinking Dragon) - Calf of Man | Buster Nixon |
| 30/06/2009 | 20 | 0 | Risso's Dolphin | 11 | 100 - 300m southeast Little Ness, Marine Drive. | Mike Craine |
| 30/06/2009 | 20 | 0 | Harbour Porpoise | 1 | Half a mile off Sugarloaf | Buster Nixon |
| 30/06/2009 | 19 | 50 | Risso's Dolphin | 8 | Heading towards Port Soderick | Ian Wilcock |
| 30/06/2009 | 19 | 40 | Harbour Porpoise | 1 | 400m NW of Niarbyl point | Patrick Burden |
| 29/06/2009 | 11 | 45 | Risso's Dolphin | 12+ | 200m off Fort island near the Chapel | Linda Wales |