Depths are measured on the game's terrain: the seafloor depth range covers the middle 90% of each biome's seabed. Cave depths are the depth of the cave floor.
Safe Shallows
- 10 to 73 m
- Seafloor depth
- 30 m
- Median depth
- 0.37 km²
- Area
Creatures that spawn here
Resources and plants that spawn here
Kelp Forest
- 30 to 116 m
- Seafloor depth
- 60 m
- Median depth
- 0.52 km²
- Area
Creatures that spawn here
Resources and plants that spawn here
Grassy Plateaus
- 67 to 148 m
- Seafloor depth
- 105 m
- Median depth
- 0.74 km²
- Area
Creatures that spawn here
Resources and plants that spawn here
Mushroom Forest
- 118 to 228 m
- Seafloor depth
- 186 m
- Median depth
- 0.68 km²
- Area
Creatures that spawn here
Resources and plants that spawn here
Underwater Islands
- 51 to 502 m
- Seafloor depth
- 244 m
- Median depth
- 0.37 km²
- Area
Creatures that spawn here
Resources and plants that spawn here
Void
- 5.75 km²
- Area
Bulb Zone
- 180 to 474 m
- Seafloor depth
- 261 m
- Median depth
- 0.6 km²
- Area
Resources and plants that spawn here
Mountains
- 160 to 383 m
- Seafloor depth
- 272 m
- Median depth
- 1.18 km²
- Area
Resources and plants that spawn here
Sparse Reef
- 94 to 475 m
- Seafloor depth
- 322 m
- Median depth
- 0.31 km²
- Area
Resources and plants that spawn here
Dunes
- 190 to 435 m
- Seafloor depth
- 327 m
- Median depth
- 1.29 km²
- Area
Resources and plants that spawn here
Crash Zone
- 203 to 478 m
- Seafloor depth
- 336 m
- Median depth
- 2.19 km²
- Area
Creatures that spawn here
Resources and plants that spawn here
Grand Reef
- 231 to 486 m
- Seafloor depth
- 369 m
- Median depth
- 1.13 km²
- Area
Resources and plants that spawn here
Blood Kelp Zone (south)
- 231 to 527 m
- Seafloor depth
- 397 m
- Median depth
- 0.12 km²
- Area
Resources and plants that spawn here
Sea Treader Path
- 0.42 km²
- Area
Resources and plants that spawn here
Blood Kelp Zone (north)
- 0.57 km²
- Area
Resources and plants that spawn here
Crag Field
- 0.54 km²
- Area
Resources and plants that spawn here
Underground
Cave systems
Jellyshroom Caves
- 174 to 303 m
- Floor depth
- 0.2 km²
- Floor area
Resources and plants that spawn here
Lost River
- 452 to 996 m
- Floor depth
- 1.11 km²
- Floor area
Creatures that spawn here
Resources and plants that spawn here
Inactive Lava Zone
- 1,013 to 1,380 m
- Floor depth
- 0.77 km²
- Floor area
Creatures that spawn here
Resources and plants that spawn here
Lava Lakes
- 1,347 to 1,613 m
- Floor depth
- 0.49 km²
- Floor area