| Event no. | Survey | Photos | Place name | Start Depth m | End Depth | Site number | County |
|---|
| 19870413/21 | 555 | | Dundrum Inner Bay (north), SE Coast. | 3.5 | 0.2 | 172 | Down |
| 19870415/21 | 555 | | Dundrum Inner Bay (south), SE Coast. | 3.5 | 0.2 | 173 | Down |
| 19870419/21 | 555 | | Newtownards, Strangford Lough. | 3.5 | 0.2 | 131 | Down |
| 19870420/21 | 555 | | Castle Espie, Strangford Lough. | 3.5 | 0.2 | 132 | Down |
| 19870423/21 | 555 | 29 | The Gobbins, NE Coast. | 3.5 | 0.2 | 78 | Antrim |
| 19870427/21 | 555 | 12 | McIlroy's Port, NE Coast. | 3.5 | 0.2 | 74 | Antrim |
| 19870428/21 | 555 | 27 | Chapman's Rock, NE Coast. | 3.5 | 0.2 | 77 | Antrim |
| 19870503/21 | 555 | | The Dorn, Strangford Lough. | 3.5 | 0.2 | 119 | Down |
| 19870506/21 | 555 | | Ringhaddy Rapids, Strangford Lough. | 3.5 | 0.2 | 142 | Down |
| 19870511/21 | 555 | | Cushendun Bay, NE Coast. | 3.5 | 0.2 | 52 | Antrim |
| 19870512/21 | 555 | 2 | New Bridge, Lough Foyle. | 3.5 | 0.2 | 1 | Londonderry |
| 19870513/21 | 555 | | Ballykelly Bank, Lough Foyle. | 3.5 | 0.2 | 3 | Londonderry |
| 19870513/22 | 555 | | Sheep Mash, Lough Foyle. | 3.5 | 0.2 | 4 | Londonderry |
| 19870514/21 | 555 | | Carrick na Ford, North Coast. | 3.5 | 0.2 | 26 | Antrim |
| 19870515/21 | 555 | | Balls Point, Lough Foyle. | 3.5 | 0.2 | 5 | Londonderry |
| 19870517/21 | 555 | 2 | Rudebane Point, NE Coast. | 3.5 | 0.2 | 49 | Antrim |
| 19870518/21 | 555 | | Old Church Bay, Larne Lough. | 3.5 | 0.2 | 84 | Antrim |
| 19870519/21 | 555 | | Glynn, Larne Lough. | 3.5 | 0.2 | 81 | Antrim |
| 19870519/22 | 555 | | Dalriada Point Bay, Larne Lough. | 3.5 | 0.2 | 83 | Antrim |
| 19870521/21 | 555 | | Longfield, Lough Foyle. | 3.5 | 0.2 | 2 | Londonderry |
| 19870524/21 | 555 | 2 | Port na Tober, North Coast. | 3.5 | 0.2 | 22 | Antrim |
| 19870524/22 | 555 | 1 | Port na Tober Headland, North Coast. | 3.5 | 0.2 | 21 | Antrim |
| 19870526/21 | 555 | | Kinrea, Rathlin Island. | 3.5 | 0.2 | 40 | Antrim |
| 19870526/22 | 555 | 2 | Oweydoo, Rathlin Island. | 3.5 | 0.2 | 34 | Antrim |
| 19870526/23 | 555 | 2 | Stackamore, Rathlin Island. | 3.5 | 0.2 | 42 | Antrim |
| 19870526/24 | 555 | 1 | Bruce's Cave, Rathlin Island. | 3.5 | 0.2 | 44 | Antrim |
| 19870528/21 | 555 | 2 | Dunimeny Castle, North Coast. | 3.5 | 0.2 | 31 | Antrim |
| 19870602/21 | 555 | 6 | Isle of Muck (east), NE Coast. | 3.5 | 0.2 | 76 | Antrim |
