The Chukchi Sea is a rather small southern extension of the Arctic Ocean.
The sea is bordered in the west by Russia's Wrangel Island and the East Siberian Sea; in the east by Alaska and the Beaufort Sea, and in the south it ends on the edge of the Bering Strait. The northern border is a mapping opinion of World Atlas.
Frozen-solid for most of the year, parts of it are navigable August through October.
The sea has an approximate area of 595,000 sq km (230,000 sq mi). Most of the sea is somewhat shallow, with depths of 50 m (164 ft) the norm.
The sea is named after Russia's Chukchi people, who still live along its western shoreline. Alyatki and Uelen are the significant ports.