OCEAN BIOMES
Vast water biomes ranging from warm coral reefs to frozen icebergs. 9 biomes in this category.
What makes a biome ocean
Nine oceans, told apart by their water and by their depth: five shallow ones and four deep ones. Temperature is 0.5 everywhere except Frozen Ocean at 0, and Frozen Ocean and Deep Frozen Ocean are the two where snow falls instead of rain, which is why ice sits on top of them and not on the other seven.
All three underwater structures on this site belong to this group. Ocean ruins and shipwrecks generate in every one of the nine, and the Ocean Monument sits in the four deep oceans, which is also the only place a guardian spawns. Cod, dolphins, pufferfish and guardians are found in no other climate group, and Lukewarm Ocean carries the longest spawn list here with six mobs.
All 9 ocean biomes
Ocean surface is frozen with large icebergs containing blue ice. Blue ice is the fastest block for ice boat travel. Polar bears spawn on icebergs.
Standard ocean biome with moderate depth. Contains kelp forests and seagrass. Dolphins can lead players to treasure.
Much deeper than regular oceans. Ocean Monuments with Elder Guardians generate exclusively in deep ocean variants. Guardians patrol around monuments.
The only ocean biome with coral reefs. Tropical fish in many colorful variants swim here. Sea pickles provide underwater light. Coral dies if placed outside water.
Transition ocean between warm and normal. Sand floor but no coral reefs. Both tropical fish and cod can be found here.
Cold ocean variant with darker, bluer water. Salmon spawn here alongside cod. Gravel forms the ocean floor.
Deep variant of the lukewarm ocean. Ocean Monuments can generate here. Shares the warmer water color of the lukewarm ocean.
Deep variant of the cold ocean. Ocean Monuments can generate here. Darker water color than the lukewarm variant.
Deep variant of the frozen ocean. Features large icebergs and blue ice. Ocean Monuments can generate beneath the ice. Polar bears spawn on icebergs.
Mobs across these 9 biomes
Nine mobs swim in these waters, four of which appear in no other group: the cod, the dolphin, the pufferfish and the guardian. Lukewarm Ocean has the fullest list with six.
- Squidin Frozen Ocean, Ocean, Deep Ocean, Warm Ocean, Lukewarm Ocean, Cold Ocean, Deep Lukewarm Ocean, Deep Cold Ocean and Deep Frozen Ocean
- Drownedin Frozen Ocean, Ocean, Deep Ocean, Lukewarm Ocean, Cold Ocean, Deep Lukewarm Ocean, Deep Cold Ocean and Deep Frozen Ocean
- Codonly in this groupin Ocean, Deep Ocean, Lukewarm Ocean, Cold Ocean, Deep Lukewarm Ocean and Deep Cold Ocean
- Dolphinonly in this groupin Ocean, Deep Ocean, Warm Ocean, Lukewarm Ocean and Deep Lukewarm Ocean
- Guardianonly in this groupin Deep Ocean, Deep Lukewarm Ocean, Deep Cold Ocean and Deep Frozen Ocean
- Salmonin Frozen Ocean, Cold Ocean, Deep Cold Ocean and Deep Frozen Ocean
- Tropical Fishin Warm Ocean, Lukewarm Ocean and Deep Lukewarm Ocean
- Polar Bearin Frozen Ocean and Deep Frozen Ocean
- Pufferfishonly in this groupin Warm Ocean and Lukewarm Ocean
Structures in the ocean biomes
Three structures, and all three of them are underwater: ruins and shipwrecks in every ocean, a monument only where it gets deep.
- Ocean Ruinsonly in this groupin Frozen Ocean, Ocean, Deep Ocean, Warm Ocean, Lukewarm Ocean, Cold Ocean, Deep Lukewarm Ocean, Deep Cold Ocean and Deep Frozen Ocean
- Shipwreckonly in this groupin Frozen Ocean, Ocean, Deep Ocean, Warm Ocean, Lukewarm Ocean, Cold Ocean, Deep Lukewarm Ocean, Deep Cold Ocean and Deep Frozen Ocean
- Ocean Monumentonly in this groupin Deep Ocean, Deep Lukewarm Ocean, Deep Cold Ocean and Deep Frozen Ocean
How the 9 compare
- Coldest at temperature 0
- Frozen Ocean
- Warmest at temperature 0.5
- Ocean, Deep Ocean, Warm Ocean, Lukewarm Ocean, Cold Ocean, Deep Lukewarm Ocean, Deep Cold Ocean and Deep Frozen Ocean
- Most mobs, 6 of them
- Lukewarm Ocean
- Rarest, counted as uncommon
- Frozen Ocean, Warm Ocean, Deep Lukewarm Ocean, Deep Cold Ocean and Deep Frozen Ocean
- Longest in the game, since Beta 1.8
- Ocean
- Newest, added in 1.13
- Warm Ocean
Five of the nine are uncommon: Frozen Ocean, Warm Ocean and the deep lukewarm, deep cold and deep frozen versions. None is rare, so every ocean on this site is reachable by sailing rather than by searching.
Eleven blocks in total, because water, gravel and kelp do most of the work down there.