Grand Reef

This article is about the Grand Reef. You may be looking for the Deep Grand Reef, the Grand Reef Caves, or the Sea Treader's Path.

This seems new This article contains information that is updated for the latest Experimental Version of Subnautica. Players using stable mode may find this information inaccurate.

<infobox layout="stacked">

 <title source="title1">
   <default>Grand Reef</default>
 </title>
 <image source="image1">

</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> The Grand Reef is a unique deep biome in Subnautica that covers a large area in the southern portion of the map.

Description

The Grand Reef is home to many types of fauna, including the large bottom-dwelling Sea Treaders, as well as two Ghost Leviathans. It is also known for its unique types of flora, from the luminous Floating Stones to the peculiar Membrain Trees. It also features its own cave system, the Grand Reef Caves. Scattered deep within the Grand Reef are multiple hydrothermal vents.

Below this area, the player can find a large cavern system featuring the similar types of flora and fauna, with the addition of Crabsquids and Jellyrays and the absence of the Sea Treaders.

Basalt Outcrops are commonly found in the Grand Reef, along with many other types of rare crystals.

<tabber> Resources=

• Aluminum Oxide Crystal
• Diamond
• Gold
• Large Copper Deposit
• Large Lead Deposit
• Large Quartz Deposit
• Large Salt Deposit
• Membrain Tree Seed
• Mercury Ore
• Quartz
• Uraninite Crystal

|-| Fauna=

• Bladderfish
• Boomerang
• Eyeye
• Ghost Leviathan
• Hoopfish
• Peeper
• Reginald
• Sea Treader
• Shoal of Fish
• Spadefish
• Warper

|-| Flora=

• Floating Stones
• Membrain Tree

</tabber>

Gallery

<tabber> Screenshots=

• 

  Overview, day

• 

  Overview, night

• 

  Flora found in the Grand Reef

• 

  A shallower area of the Grand Reef

• 

  One of the smaller rock arches in the Grand Reef

• 

  A large rock arch in the Grand Reef

• 

  A deeper area of the Grand Reef

• 

  Thermal Vents in the Grand Reef

• 

  An entrance to the Grand Reef Caves

|-| Concept Art=

• 

  Concept Art

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

Trivia

• In earlier builds, the Grand Reef had large pillar-like spikes, some of which were visible above the surface. These were removed, and was explained to be temporary. However, the concept of them may have been used for inspiration of the Crag Field. Another reason for their removal is that they had bad models and were not destructible.
• Certain structures have curious house-like caverns, very reminiscent of grotto-homes in primitive cultures. 
• The Grand Reef is the third biggest biome in Subnautica.
• Despite its name, the Grand Reef does not have actual corals nor any reef-like structures at all.

Spoiler alert: This section will reveal story-related material if expanded.
The Grand Reef was planned to house a Warp Gate Cache that linked to the Primary Containment Facility. This however, was scrapped.