Deep beneath the labyrinth caverns that is the Lost River is the Inactive Lava Zone. This is a semi-volcanic region found from a depth of 900 to 1300 meters, a depth only preceding the Lava Lakes and the Void itself. Due in part to the high pressure and extreme temperatures, few creatures call this infernal region home. This region however, is home to the 112 meter Sea Dragon Leviathan, a monstrous, endangered species even capable of killing Reaper Leviathans. This base allows particularly daring individuals to observe the fauna and geology for extended durations compared to a traditional submarine.

If you have any base suggestions for Subnautica or Below Zero, please feel free to let me know in the comments below

Have a great day! :D