Lava Zone National Park Tank Top

The Inactive Lava Zone is a cavernous biome located 900 meters below the surface. It is the second deepest biome and the penultimate area in Subnautica. The Inactive Lava Zone is characterized by large, arching structures and walls of hardened lava with occasional steaming lava falls. It is composed of two distinct areas and can be found at 900 to 1300 meters down, well below the limit of a Seamoth (even when equipped with a Seamoth Depth Module MK3) - making an upgraded Cyclops and Prawn Suit the only vehicles to be able to navigate through it.