Cartography
The oceans
Five great oceans, their seas, their deepest trenches, and the expeditions and legends linked to them. Click a marker to learn more.
Arctic Ocean
The smallest and coldest of the oceans, covered in sea ice, home to the narwhal and the great polar mammals.
3 species listed
Atlantic Ocean
The second-largest ocean on the globe, crossed by great migrations of tuna and deep-sea squid.
23 species listed
Southern Ocean
A belt of icy waters encircling Antarctica, home to penguins, seals and polar whales.
2 species listed
Indian Ocean
Bordered by Africa, Asia and Australia, rich in coral reefs and temperate seaweed meadows.
13 species listed
Pacific Ocean
The largest and deepest of the oceans, home to the Mariana Trench.
40 species listed