Dunes

| Property | Details |
|---|---|
| Type | Surface |
| Depth Range | 65 - 530 meters |
| Temperature Range | 13.4°C - 14.3°C |
| Biome ID | dunes |
| Music | Alien Expanse |
"Detecting multiple leviathan class lifeforms in the region. Are you certain whatever you're doing is worth it?" ― PDA, Dialogue
The Dunes is a biome located west from Lifepod 5, on the edge of the map. It borders the Grassy Plateaus, Sea Treader's Path, Safe Shallows, both Blood Kelp Zones, the Northwestern Mushroom Forest, and the Crater Edge.
Key Locations
- Large Wrecks: Three wrecks are found here. One near the Northwestern Mushroom Forest (slid down from the forest) and two smaller ones near the Sea Treader's Path border.
- Meteor Crater: A large crater from a meteor impact, close to the Northern Blood Kelp Zone border. Contains a Sanctuary Cache.
- Large Sinkhole: Located approximately 220m south from Wreck 6. Contains Dunes Caves, a Cuddlefish egg, four Sea Crowns, and thermal vents.
- Dunes Caves: Entrances located within the sinkhole area.
- Alien Vent Entrance Point: Found in the Dunes.
- Sea Emperor Juvenile: One of five juveniles can be found here after hatching the Sea Emperor Leviathan Eggs.
Coordinates
- Harvesting Nodes: -1511, -336, 294
- Large Wrecks: -1448, -332, 732; -1632, -334, 80; -1210, -217, 7
- Meteor Crater: -1144, -329, 1147
- Large Sinkhole: -1500, -400, 500
- Thermal Vents: -1735, -225, 715; -1640, -360, 410; -1500, -400, 500; -1490, -320, 910; -1470, -300, 90; -1340, -310, 250; -1250, -330, 1000; -1090, -180, 10
- Dunes Caves Entrances: -1640, -255, 700; -1620, -270, 775; -1500, -400, 530; -1490, -340, 580; -1475, -415, 515; -1470, -400, 465
- Dunes Sanctuary: -1187, -378, 1130
- Alien Vent Entrance Point: -1160, -245, -140
Description
The Dunes feature open waters and vast, sandy plains and dunes, sparsely littered with various types of rock structures. It is home to many dangerous fauna, most notably eight Reaper Leviathans that patrol the open spaces. These leviathans and the PDA summary heavily discourage players from entering the biome.
The biome is relatively shallow at its borders but slopes down to very deep sections. Gasopods and their eggs are found near hydrothermal vents, along with Lithium and Rubies. Reaper Leviathans often wander close to these vents.
Even during the day, the Dunes are quite dark and murky, making it difficult to see threats. It is recommended to keep track of Reaper Leviathan locations and give those areas a wide berth. Building a base here requires a Scanner Room with a HUD Chip to effectively monitor nearby threats.
Resources and Items
All Data Boxes, Fragments, Scannables, and items listed below are found exclusively in Wrecks within this biome.
Data Boxes
- Cyclops Depth Module MK1
- Cyclops Shield Generator
- Reinforced Dive Suit
- Water Filtration Suit
- Ultra High Capacity Tank
- Vehicle Upgrade Console
Materials
- Acid Mushroom
- Copper Ore
- Gold
- Large Quartz Deposit
- Large Salt Deposit
- Large Silver Deposit
- Large Titanium Deposit
- Lead
- Lithium
- Metal Salvage
- Quartz
- Ruby
- Salt Deposit
- Silver Ore
- Titanium
Other Items
Fragments
- Moonpool Fragment
- Nuclear Reactor Fragment
- Power Cell Charger Fragment
- Prawn Suit Drill Arm Fragment
- Prawn Suit Grappling Arm
- Thermal Plant Fragment
Scannables
- Bar Table
- Basic Plant Pot
- Bench
- Chic Plant Pot
- Coffee Vending Machine
- Command Chair
- Counter
- Desk
- Floodlight
- Nuclear Waste Disposal
- Wall Shelves
- Water Filtration Machine
Fauna
- Bladderfish
- Boomerang
- Cave Crawler
- Eyeye
- Garryfish
- Gasopod
- Hoopfish
- Peeper
- Reaper Leviathan
- Reefback Leviathan
- Rockgrub
- Sand Shark
- Shoal of Fish
- Shuttlebug
- Spadefish
- Warper
Flora
- Acid Mushroom
- Furled Papyrus
- Gel Sack
- Redwort
- Regress Shell
- Rouge Cradle
- Sea Crown
- Violet Beau
- Writhing Weed
- Brain Coral
- Slanted Shell Plate
Gallery
Overview, day
Overview, night
A large stone arch in the Dunes
The Dunes crater
Overview of the center of the crater
Naturally formed rock pillars
The border with the Northern Blood Kelp Zone
The giant sinkhole found in the Dunes
Thermal vents in the sinkhole
Some of the flora and coral found in the sinkhole
Transition with the Northwestern Mushroom Forest
The transition with the Blood Kelp Trench
The transition with the Sea Treader's Path
The transition with the Grassy Plateaus
The transition with the Kelp Forest
The Large Wreck in the Dunes
A Reaper Leviathan in the Dunes
A small arch like formation, near Sea Treader's Path
Stairs-like formation bordering the Crater Edge are common in the Dunes, often having large resource deposits
Ditto, but with a large salt deposit
A deep crag-like formation with many resources and a fissure going 480 meters down
The deepest and most barren part of the Dunes, bordering the northern Blood Kelp Zone
Trivia
- The Dunes once contained entrances to the Inactive Lava Zone and Lost River.
- The Dunes is the second largest biome in Subnautica, second only to the Crash Zone.
- At coordinates (-1844.4, -367.2, 864.9), even though the player is still in the Dunes, the game considers the biome to be the Crater Edge and will spawn Ghost Leviathans accordingly, despite the presence of harvesting nodes below.