| island | name | image | Height (m) | continent | Area (m²) | waterbody | latitude (°) | longitude (°) | administrative división | Map |
|---|---|---|---|---|---|---|---|---|---|---|
| Furness | Irish sea | 54.2666664124 | -3.0833332539 | Cumbria | Map | |||||
| Wirral Peninsula |  | Irish sea | 53.2999992371 | -3.0000000000 | Map | |||||
| Ards Peninsula |  | Irish sea | 54.5000000000 | -5.5000000000 | Map |