| PELOPONNESE | The southern peninsula of Greece, joined to central Greece by the Isthmus of Corinth |
| LADON | River in the Peloponnese peninsula of Greece that rises on the western slope of the Aroania mountain, near the village of Kastria |
| DECCAN | Name for the entire southern peninsula of India south of the Narmada River, marked centrally by a high triangular tableland. (6) |
| NOVASCOTIA | It's connected to New Brunswick by the Isthmus of Chignecto |
| AMERICAS | Landmass consisting of two continents connected by the Isthmus of Panama (8) |
| LEPANTO | Port in Greece between the Gulfs of Corinth and Patras that was the scene of a 1571 naval battle in which the Turkish fleet was defeated by the fleets of the Holy League |
| KRA | The Isthmus of --- is a narrow neck of the Malay Peninsula between the Gulf of Thailand and the Andaman Sea (3) |
| ATRATO | River rising in Colombia that meanders north across the base of the Isthmus of Panama to the Gulf of Uraba (6) |
| CORINTH | The Isthmus of - connects the Peloponnesus with the mainland of Greece (7) |
| ACHAIA | Before the Roman conquest in 146 BCE, what was the name given to a strip of land between the Gulf of Corinth in the north and Elis and Arcadia in the south? (6) |
| MALAY | Also called Kra Peninsula, this long, narrow appendix of Asia extends south for a distance of about 700 miles (1,127 km) through the Isthmus of Kra to Cape Pia. (5) |
| CANALZONE | Former administrative region of the U.S. on the Isthmus of Panama (5,4) |
| SANBLAS | ? Islands, archipelago off the north coast of the Isthmus of Panama |
| SARK | Island in the English Channel whose two main parts are linked by the isthmus La Coupee |
| COSTARICA | Republic in Central America on the Isthmus of Panama (5,4) |
| ASIA | It is connected to Africa via the Isthmus of Suez (4) |
| SINAI | Peninsula adjoining the Isthmus of Suez |
| SISYPHUS | King of Corinth, condemned by the Gods to an eternal boulder related struggle (8) |
| NORTHMACEDONIA | This country in Eastern Europe angered Greece by renaming its largest airport in 2006 after Alexander the Great, a hero claimed by both countries; the name change was reversed in 2018 |
| PELOPS | Son of Tantalus, after whom Greece's southern peninsula is named (6) |
