Sea snakes live in the ocean. The geographical distribution depends on the precise type of sea snake. The banded sea krait is indigenous to tropical areas, while the yellow-bellied sea snake is found near southeastern Africa and along the Central American coast.
Some sea snakes can only live in the ocean, surfacing only to drink from puddles or pools of fresh water, while others can live both on land and in the water. They possess long, paddled tails that allow them to propel themselves through the water. The yellow-bellied sea snake can live for as long as 7 months without fresh water.