Underwater Islands

This article is about the Underwater Islands. You may be looking for the Floating Island or the Mountain Island.

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   <default>Underwater Islands</default>
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</image> <label>Tab</label> <label>Type</label> <label>Biome</label> <label>Depth Range</label> <label>Temperature Range</label> <label>Biome ID</label> <label>Harvesting Nodes</label> <label>goto ID</label> <label>Coordinates</label> <label>Base ID</label> <group> <label>Point of Interest</label> <label>Music</label> </group> </infobox>

Erosion patterns on the landmasses suspended here suggest they once floated on the surface. File:UnderwaterIslandsIntro.ogg

― PDA, Dialogue

The Underwater Islands are a unique biome in Subnautica, featuring multiple and massive rock formations suspended above the ocean floor. Bonesharks dwell abundantly here, along with other types of fauna and flora. It also features its own cave system, the Underwater Islands Caves.

Description

Most of the Underwater Islands rely completely on the buoyancy provided by Ancient Floaters. Currently, there are eighteen islands in the area, with the size of the many "islands" varying from minuscule to massive. Two of the largest islands have a great variety of life forms and even possess their own separate cave system. A large ring of broken-off rocks surrounds the largest island, it is unknown how these rocks float without any attached floaters.

Hydrothermal vents can be found on the surface of the largest island, while Lava Geysers can be found in huge numbers on the ocean floor directly underneath the islands. Occasionally, large chunks of rock can be seen falling down from the islands and disintegrating. In some places, small streams of sand can be seen flowing down from over the edges of the islands.

Quartz is a common find on both the tops and walls of the islands, with Diamonds occasionally as well. Sandstone Outcrops and Shale Outcrops are located on the ground of most of the islands. Large Resource Deposits of Uraninite and Silver are located at the bottom with the Lava Geysers. Large Gold Deposits are rarely found near the cliffs around the biome, alongside Limestone Outcrops and Spadefish.

The Underwater Islands border one of the Mushroom Forests, Mountains, one of the Kelp Forests,  the Northern Blood Kelp Zone, and one of the Grassy Plateaus. Wreck 4 is located in the Underwater Islands, suspended by two of the islands.

The abundance of Boneshark pose an active threat to Seamoths and Prawn Suits. Consequently, maintaining vehicle wellbeing is important in the Underwater Islands.

Spoiler alert: The following section contains story related material.
An Alien Vent Entrance Point is found in the Underwater Islands.

<tabber> Data Boxes= All Data Boxes are found in Wrecks:

• Alien Containment
• Creature Decoy
• Cyclops Fire Suppression System
• Repulsion Cannon
• Swim Charge Fins

|-| Resources=

• Copper Ore
• Coral Tube Sample
• Diamond
• Large Gold Deposit
• Large Silver Deposit
• Large Uraninite Deposit
• Lead
• Lithium
• Quartz
• Salt Deposit
• Silver Ore
• Spadefish Egg
• Titanium
• Boneshark Egg

|-| Fauna=

• Ancient Floater
• Boneshark
• Boomerang
• Garryfish
• Hoopfish
• Peeper
• Reefback Leviathan
• Shoal of Fish
• Spadefish

|-| Flora=

• Redwort
• Violet Beau
• Drooping Stingers

|-| Coral=

• Earthen Coral Tubes
• Coral Shell Plate
• Purple Pinecone

|-| Fragments= <tabber> Seabed=

• Propulsion Cannon
• Stasis Rifle

|-| Wrecks=

• Cyclops Engine Fragment
• Power Cell Charger Fragment
• Prawn Suit Claw Arm Fragment
• Prawn Suit Fragment
• Prawn Suit Drill Arm Fragment
• Prawn Suit Grappling Arm Fragment
• Prawn Suit Propulsion Cannon Fragment
• Propulsion Cannon Fragment
• Stasis Rifle Fragment</tabber>

|-| Scannables= All Scannables are found in Wrecks:

• Bench
• Chic Plant Pot
• Command Chair
• Composite Plane Pot
• Desk
• Floodlight
• Office Chair
• Picture Frame
• Swivel Chair

</tabber>

Gallery

• 

  Overview

• 

  A view of one of the smaller islands of the biome

• 

  The largest Underwater Island

• 

  Ditto, viewed from underneath

• 

  Lava Geyser beneath the Underwater Islands

• 

  A view of the wreck in the biome

• 

  A closer view of the wrecks in the Underwater Islands

• 

  An Ancient Floater

• 

  Some Violet Beau in the area

• 

  The Underwater Islands

• 

  One of the longer Islands

• 

  One of the smaller Underwater Islands

• 

  Some floating boulders

• 

  A variety of life forms populating each of the Underwater Islands

• 

  Some Redwort in the Underwater Islands

• 

  The Wreck

• 

  Debris from the Wreck

• 

  The Underwater Islands caves

• 

  A small cave on the outskirts of the biome, housing Drooping Stingers

Trivia

• The PDA suggests that the Underwater Islands once floated on the surface, like the Floating Island.
• The old Biome ID for the Underwater Islands was "waterislands".