| AMUNDSENSEA | Arm of the Southern Ocean off western Antarctica, between the islands of Thurston and Siple (8,3) |
| HOWELL | Gilligan's Island's Thurston and Lovey ... (6) |
| ROSSSEA | Large arm of the southern Pacific indenting the coast of Antarctica between Victoria Land and Marie Byrd Land (4,3) |
| GILLIGANSISLAND | Milieu of Thurston, Ginger, Mary Ann, etc. |
| DINNERJACKETS | Some of Thurston Howell's wardrobe |
| JIMBACKUS | Player of Thurston Howell III |
| MONAPASSAGE | Strait between the islands of Puerto Rico and Hispaniola linking the Atlantic Ocean with the Caribbean Sea (4,7) |
| MENAISTRAIT | Channel of the Irish Sea between the island of Anglesey and the mainland of North Wales (5,6) |
| SUNDASTRAIT | Channel between the islands of Java and Sumatra (5,6) |
| TYRRHENIAN | The ... Sea is an arm of the Mediterranean Sea between the islands of Sicily, Corsica, Sardinia and Italy (10) |
| PACIFIC | Largest body of salt water on Earth, extending from the Arctic in the north to the borders of the Southern Ocean. (7) |
| BANDASEA | Portion of the western South Pacific lying between the islands of Sulawesi and New Guinea (5,3) |
| WEDDELLSEA | Area of the Southern Ocean north of West Antarctica |
| ROSS | --- Sea, home of the world's largest marine reserve off Antarctica in the Southern Ocean (4) |
| INLAND | The ... Sea in SW Japan lies between the islands of Honshu, Shikoku and Kyushu (6) |
| SUNDA | Name of a strait between the islands of Java and Sumatra (5) |
| TSUGARUSTRAIT | Body of water between the islands of Hokkaido and Honshu in Japan (7,6) |
| SAVU | Small sea of eastern Indonesia lying between the islands of Flores and Timor (4) |
| FIELDSMEDAL | Jean-Pierre Serre, Alexandre Grothendieck, William Thurston |
| MAORI | ___ chief, notothen of the Southern Ocean (5) |
