| GULFOF | Deep inlet of the Ionian Sea separating the Peloponnese from mainland Greece (4,2,7 |
| CORINTH | Deep inlet of the Ionian Sea separating the Peloponnese from mainland Greece (4,2,7) |
| MENAI | The Strait is a channel of the Irish Sea separating the Welsh mainland from Anglesey (5) |
| ADRIATIC | Sea separating the Balkans from the Italian peninsula |
| IONIANISLAND | *One in a chain west of mainland Greece |
| MENAISTRAIT | Channel of the Irish Sea separating Anglesey from the mainland of NW Wales (5,6) |
| SKAGERRAK | Broad strait of the North Sea separating southern Norway from the NW coast of Denmark (9) |
| FIORD | Long, narrow, deep inlet of the sea between high cliffs, as found in Norway (5) |
| SOLWAY | ------Firth, an inlet of the Irish Sea separating Cumbria from Dumfries and Galloway (6) |
| GULF | A deep inlet of the sea (4) |
| GUANABARA | ? Bay, deep inlet of the Atlantic Ocean in Brazil upon which Rio de Janeiro stands (9) |
| PUGETSOUND | Deep inlet of the Pacific Ocean in northwestern Washington State, US (5,5) |
| LOCHLONG | Narrow, deep inlet of the Clyde witha naval base at Coulport (4,4) |
| PUGET | Deep inlet of the Pacific Ocean in north-west Washington, US (5,5) (see 12D) |
| SOUND | Deep inlet of the Pacific Ocean in north-west Washington, US (5,5) (see 9A) |
| GUANABARABAY | Deep inlet of the Atlantic Ocean upon which Rio de Janeiro, Brazil, stands (9,3) |
| ARTA | Gulf of the Ionian Sea |
| ETNA | Peak west of the Ionian Sea |
| TONKIN | Gulf of -, body of water separating Hainan Island from mainland Vietnam (6) |
| ITHACA | One of the Ionian Islands, regarded as the home of Homer's Odysseus (6) |
