Minecraft ocean ruins finder
Enter your seed to list the ocean ruins nearest to you, with exact X and Z coordinates, for Java Edition 1.16.5 to 1.21.4.
Structures and search area
Bedrock Edition isn't supported yet
Bedrock places structures and slime chunks differently from Java, so we don't show Java results for a Bedrock world. Bedrock support is coming. Switch to Java to use the map.
Ocean ruins in numbers
- 156blocks from 0, 0 to the nearest one (median)
- 3.1ocean ruins per 1,000 × 1,000 blocks
- 20 × 20chunks per region, one attempt each
- 50/50of our listed results confirmed by the game
Measured with our engine on 10 test seeds, Java 1.21.1, in an area of 8,192 × 8,192 blocks around 0, 0 for each seed.
What are ocean ruins?
Ocean ruins are crumbling stone or sandstone buildings under the sea, with loot chests and suspicious blocks you can brush for pottery sherds and sniffer eggs. 4 things to look for inside:
- A loot chest that can hold a buried treasure map, an enchanted fishing rod or emeralds
- Suspicious gravel in cold ruins, with pottery sherds
- Suspicious sand in warm ruins, with pottery sherds and sniffer eggs
- Magma blocks, sea lanterns and prismarine in the walls
Watch out: Many ruins spawn with one to four drowned, which never despawn. Magma blocks are part of the ruins.
Where ocean ruins generate
Cold ruins (stone bricks) generate in ocean, cold ocean and frozen ocean, and their deep versions. Warm ruins (sandstone) generate in warm, lukewarm and deep lukewarm ocean. They sit on the seafloor, often partly buried.
This is how the ocean ruins in our test areas split between biomes:
| Biome | Share of ocean ruins |
|---|---|
| Ocean | 23.4% |
| Lukewarm ocean | 18.9% |
| Cold ocean | 12% |
| Deep ocean | 11.5% |
| Deep lukewarm ocean | 10.4% |
| Warm ocean | 9.8% |
| Deep cold ocean | 7.4% |
| Frozen ocean | 4.2% |
| All other biomes | 2.4% |
Measured with our engine on 10 test seeds, Java 1.21.1, in an area of 8,192 × 8,192 blocks around 0, 0 for each seed. Biome taken at the centre of each start chunk, at Y 64.
How far apart ocean ruins are
The game splits the Overworld into square regions of 20 × 20 chunks (320 × 320 blocks) and makes one attempt in each. Our test areas held about 655 regions each and between 143 and 247 ocean ruins, so about 33% of regions got one.
| Measure | Closest seed | Median seed | Furthest seed |
|---|---|---|---|
| Nearest to 0, 0 (blocks) | 104 | 156 | 1,208 |
| Number in 8,192 × 8,192 blocks | 247 | 214 | 143 |
Engine results for the 10 test seeds, Java 1.21.1. Placement: 1 per 20 × 20 chunks.
The median is a typical seed. Yours can be much closer or further, which is why the finder lists results for your exact seed.
Tips for finding and exploring ocean ruins
- 30% of ocean ruins are large, and a large ruin has a 90% chance to have 4 to 8 small ruins around it, so explore the whole cluster.
- Chests and suspicious blocks can be buried under sand or gravel, so dig around.
- Bring a brush: suspicious gravel in cold ruins, suspicious sand in warm ruins.
How to use the coordinates in game
- Press F3 to see your own X and Z, then head towards the result’s X and Z. Ocean ruins are on the seafloor.
- With cheats on, tap a marker or Copy and run
/tp @s X ~ Z; the~keeps your current height. - The coordinates are the north-west corner of the chunk the ocean ruins starts in, the same chunk
/locate structure #minecraft:ocean_ruinpoints to.
Set “Search near” to your base or the map centre to list ocean ruins around a different spot. To see ocean ruins next to every other structure type, use the structure finder.
How accurate the ocean ruins finder is
We started a real Java 1.21.1 server for 10 test seeds. Our nearest result to 0, 0 matched the game’s /locate on 10 of 10 seeds, and the game confirmed 50 of the 50 ocean ruins we listed. Other versions haven’t been checked against the game yet.
Bedrock Edition: Java only for now
Bedrock uses its own structure placement, which we haven’t rebuilt yet. A Java map would point you to the wrong places, so the finder doesn’t show Bedrock results yet.
Frequently asked questions
How do I find ocean ruins in Minecraft?
Enter your world seed above, pick the Java version the world was created in, and the finder lists the nearest ocean ruins with exact X and Z coordinates. 30% of ocean ruins are large, and a large ruin has a 90% chance to have 4 to 8 small ruins around it, so explore the whole cluster.
What Y-level are ocean ruins at?
Ocean ruins are on the seafloor.
How far away is the nearest one?
On our 10 test seeds the nearest ocean ruins to 0, 0 was 156 blocks away for a typical seed, ranging from 104 to 1,208 blocks. Your seed can be closer or further, so check the list for your own world.
Does the ocean ruins finder work on Bedrock Edition?
Not yet. Bedrock uses its own structure placement. The finder only shows Java results, so it never points you to the wrong place.
How accurate is the ocean ruins finder?
We checked it against a real Java 1.21.1 server: the game confirmed 50 of the 50 ocean ruins we listed, and our nearest result matched /locate on 10 of 10 seeds.
How do I find my Minecraft seed?
In Java Edition, type /seed in chat. It works in single player even with cheats off; on a server you need operator rights. Text seeds work too: paste them as they are.
Related finders
- Buried treasure finderThe exact chest with the heart of the sea.
- Ruined portal finderObsidian and gold, Overworld and Nether.
- Trail ruins finderArchaeology, sherds and the Relic disc (1.20+).
- Mineshaft finderThe most common structure: tunnels and chests.
- Village finderVillages by biome, and how far apart they are.
- All findersEvery finder on one page.
Ocean ruins were added in Java 1.13. Facts from the Minecraft Wiki: Cold Ocean Ruins, Warm Ocean Ruins.