This character lives in an undersea town on bikini beach.

Spongebob is a fictional character in an American cartoon. Spongebob lives in an undersea town called Bikini Beach.

The undersea town is located in a huge underwater coral reef, which is the home of Spongebob and friends. Bikini Beach is a colorful and vibrant place, with all kinds of marine life residents and krusty krab restaurant where Spongebob works.