Oceans and seas
World Bodies of Water
Oceans, seas, gulfs, bays and the biggest lakes: name all 76 on the world map before the 10-minute timer runs out. Each one you type is labelled on the map, or switch to “find on the map” and click them one by one.
- Found
- 0/76
- Time
- Time left: 10:00
Every place to name is outlined on the map and marked with a dot. Type the names before the 10:00 timer runs out: each one you get is labelled on the map. You can leave out “Sea”, “Gulf of” or “Lake” when the name is still clear: “Caribbean” or “Bengal” will do.
Finding your next challenge…
The list, the names and sources
The 76 answers: the five oceans; every sea, gulf and bay that Natural Earth ranks among its major marine areas (ranks 0 to 3 of its 1:10m marine areas, leaving out straits, channels and passages); and the ten lakes larger than 25,000 km², from Lake Superior down to Lake Erie.
The Caspian Sea has no outlet to the ocean, so it is usually counted as the world’s largest lake, but its water is salty and everyone calls it a sea. It counts as a sea in the seas quizzes and as a lake in the largest lakes quiz.
You can leave out the generic word when the rest of the name is clear: “Mediterranean”, “Caspian”, “Bengal” and “Superior” all count. Other common names count too, such as the Sea of Cortez, Lake Nyasa or the Gulf of Siam.
Some seas have more than one name. The Sea of Japan is called the East Sea in Korea, the Persian Gulf the Arabian Gulf in Arab countries, and since 2025 the US government calls the Gulf of Mexico the Gulf of America. Every one of these names counts.
“Find on the map” names one place at a time: click it on the map. You get one click per name; a wrong click marks the place in red and moves on.
Outlines come from Natural Earth (public domain): its 1:10m marine areas, 1:10m and 1:50m lakes and 1:50m countries. Where two seas meet, the line follows Natural Earth’s areas, which roughly follow the IHO limits; some seas, such as the Sargasso Sea, have no coast at all.
Natural Earth’s outline of the Scotia Sea is only a sliver, so its outline here is ours: between Tierra del Fuego, South Georgia and the South Sandwich, South Orkney and South Shetland Islands.
Natural Earth: physical vectors (marine areas, lakes, regions; public domain)