Crater Edge

The Void is an area that borders the entire map of Subnautica. It currently has no use, and is not canonical to the story.

The Void is the end of the map and has a bottom at 3000 meters depth, past this there is another, seemingly infinite drop.

Multiple adult Ghost Leviathans live in the Void after migrating there from the Lost River, where they act as a deterrent for wandering players going outside of the playable area.

Description
True to its name, The Void is devoid of terrain, flora, coral, and all but one fauna species.

Fauna

 * Ghost Leviathan

Trivia

 * Sea Dragon Leviathans, among other fauna, were planned to spawn in the Void, but this idea was scrapped.