Ocean Ruins190 blocks
Trial Chambers197 blocks
Ruined Portal208 blocks
Minecraft Coral Reef Seeds
By the ChunkScan Team · Updated August 2026
Coral reefs grow on the floor of the warm ocean, the shallow sand-bottomed ocean next to deserts and other hot biomes. Every seed below was scanned and has a warm ocean within 512 blocks of spawn. Open a seed to see where it is on the map.
Coral reef seeds near spawn
Distances in blocks from spawn
- Trial Chambers92 blocks
- Ruined Portal368 blocks
Village614 blocks
- Ruined Portal124 blocks
Abandoned Camp186 blocks- Trial Chambers203 blocks
- Ocean Ruins120 blocks
- Abandoned Camp222 blocks
Shipwreck233 blocks
Buried Treasure105 blocks- Trial Chambers234 blocks
- Ocean Ruins235 blocks
- Trial Chambers250 blocks
- Ruined Portal279 blocks
- Abandoned Camp336 blocks
- Ruined Portal229 blocks
- Trial Chambers270 blocks
Trail Ruins295 blocks
- Buried Treasure152 blocks
- Shipwreck220 blocks
- Ocean Ruins247 blocks
- Ocean Ruins102 blocks
- Ruined Portal217 blocks
- Shipwreck261 blocks
- Ruined Portal264 blocks
- Trial Chambers312 blocks
- Ocean Ruins477 blocks
- Trial Chambers75 blocks
- Ocean Ruins126 blocks
- Buried Treasure136 blocks
- Village227 blocks
- Trial Chambers329 blocks
Desert Pyramid357 blocks
- Ruined Portal80 blocks
Pillager Outpost295 blocks
Jungle Temple340 blocks
- Trial Chambers221 blocks
- Shipwreck378 blocks
- Pillager Outpost462 blocks
- Trial Chambers288 blocks
- Ocean Ruins309 blocks
- Ruined Portal351 blocks
- Trial Chambers183 blocks
- Ocean Ruins213 blocks
Ocean Monument255 blocks
- Trial Chambers235 blocks
- Abandoned Camp273 blocks
- Ruined Portal321 blocks
- Village86 blocks
- Ruined Portal93 blocks
- Trial Chambers207 blocks
- Ruined Portal182 blocks
- Ocean Ruins239 blocks
- Shipwreck247 blocks
- Ocean Ruins176 blocks
- Shipwreck227 blocks
- Buried Treasure329 blocks
- Trial Chambers69 blocks
- Shipwreck219 blocks
- Desert Pyramid229 blocks
- Trial Chambers46 blocks
- Buried Treasure47 blocks
- Ruined Portal128 blocks
- Ocean Ruins183 blocks
- Shipwreck272 blocks
- Trial Chambers340 blocks
- Ocean Ruins97 blocks
- Shipwreck136 blocks
- Trial Chambers239 blocks
Already have a world? Open any seed in the Minecraft seed map to see its biomes and structures, or browse all seed tools.
What is in a coral reef?
Coral blocks, coral and coral fans in five colours, sea pickles for underwater light and tropical fish to catch in a bucket. Coral blocks die out of water, so mine them with Silk Touch and place them in water at your base. The warm ocean has no kelp or salmon, and its ocean ruins are made of sandstone.
How the seeds are checked
Each seed was generated with cubiomes for the listed edition and version. We record which biomes fall in a 1,024-block square around spawn, so these seeds are known to have a warm ocean within 512 blocks.