SUBNAUTICA 2 GUIDEDeep-sea field manual
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Thermal Spires Caves

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The Thermal Spires Caves are a hazardous cave system in Subnautica: Below Zero, located beneath the Thermal Spires. Featuring Lava Geysers and rare resources like Diamond and Gold, this biome houses the Mineral Distillery and serves as an entrance to the Koppa Mining Site.

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Thermal Spires Caves

Thermal Spires Caves Biome

The Thermal Spires Caves is a collection of cave systems spread throughout the Thermal Spires. The caves are accessible through entrances located around the perimeter of Delta Island.

Overview

PropertyDetails
CategoryBiomes
TypeCave
Depth Range50 - 245 meters
Biome IDthermalspirescave
Coordinates-229 -83 -521
Point of InterestMineral Distillery
MusicLithium, Magnetite, Cryptosuchus

Description

The Thermal Spires Caves, like its parent biome, is littered with Hydrothermal Spire formations. The tunnels that make up the biome range from narrow to compact, and only support a handful of Oxygen Plants. The biome's fog is a drab and murky green, likely due to the intense, concentrated geothermal activity.

Lava Geysers are found predominantly throughout the caves, making navigation without the aid of a Seatruck hazardous towards the player. The caves' ceilings are dotted with clusters of stalactites, and the only natural source of illumination comes from the Oxygen Plant and Lava Geysers. Diamond and Gold Ore Veins can be found close to the geysers as well.

The largest cave system serves as an alternative entrance to the Koppa Mining Site, leading the player to an open, mineral-rich area within the mines. Another, small cave system also leads the player into the site, close to the actual entrance.

One of the caves contains the Mineral Distillery.

Resources

An overview of one of the cave systems An overview of one of the cave systems

A group of Lava Geysers A group of Lava Geysers

An entrance to one of the caves An entrance to one of the caves

An entrance to the Koppa Mining Site An entrance to the Koppa Mining Site

Mineral Distillery Mineral Distillery

Trivia

  • The Thermal Spires Caves is the only biome to have no Fauna.
  • This is interesting as the eggs of the Cryptosuchus can only be found here.

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