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This landmark is late-game content: a deep biome, a leviathan or part of the story. It stays hidden until you choose to see it.

Alien siteInactive Lava Zone

Alien Thermal Plant

171 m N · 2° · 1215 m deep-50, -1215, 110Show on map

Before you go

Doors

2× Alien door: place a tablet Purple tablet ×2

Reach it with

Prawn suit + Prawn suit depth module MK1
Cyclops + Cyclops depth module MK2

Crush depths from the game's vehicle data. Depth guide

PDAs and terminals

Fossil DataTerminal
Primary Containment FacilityTerminal
Ion Power DataTerminal

Supplies and pickups

Blue tablet

Things to scan

Alien ArchDatabank entry

Bearing and distance are measured from the centre of the area where your lifepod lands (it lands at a random spot up to 400 m away). Bearings follow the in-game compass.

Subnautica data: build 83031 (Oct 2025)