Sea snakes are venomous snakes that cannot walk/slither on land

Sea snakes adapted to the ocean and learned how to swim and hunt for eels and other fish.

Unlike fish, they do not have gills and must surface regularly to breathe.

the warm tropical waters of the Indian Ocean and the western Pacific Ocean,

with a few species found well out into Oceania.

Despite their marine adaptations, most sea snakes prefer shallow waters near land,

around islands, and especially somewhat sheltered waters, as well as near estuaries.

Here is a video showing a sea snake swimming.