Grand Reef

The Grand Reef is currently the largest biome in Subnautica. It covers a considerable portion Southern and Southwestern corner of the map, and also is a very deep area, offering a wide range of diving possibilities to the players.

A few types of flora inhabit the Grand Reef, all of whom are edible and none of whom are hostile or defensive.

The Grand Reef is also known for its unique types of flora, featuring the luminous Floating Stones along with the peculiar Membrain Trees. They are found almost everywhere in the biome.

Notable deeper areas, including the Deep Grand Reef, have many hydrothermal vents known as "black smokers", located in the Southwestern corner of the map.

The most common harvesting node in the Grand Reef are Basalt Outcrops.

Resources

 * Aluminum Oxide
 * Diamond
 * Gold
 * Membrain Tree Seed
 * Mercury Ore
 * Moon Pool Fragment
 * Nuclear Reactor Fragment
 * Quartz
 * Thermal Plant Fragment
 * Uranium

Fauna

 * Airsack
 * Boomerang
 * Eyeye
 * Hoopfish
 * Reginald
 * Spadefish

Flora

 * Floating Stones
 * Membrain Tree

Gallery
For a more complete gallery, visit Grand Reef/Gallery.

Trivia

 * While being considered as the largest biome, the Grand Reef 's diversity in fauna and flora, however, is subpar in comparison with other biomes, like the Grassy Plateaus or the Kelp Forest.