JAVA 26.3 · VERIFIED IN GAME

Two small mushroom islands between an ocean monument and a sunken shipwreck

Page updated October 4, 2026

Two low mushroom islands with giant red and brown mushrooms sit in open sea, with an ocean monument showing through the water to the north-north-west.

Ocean monument

Shipwreck

Trial chambers

Mushroom fields

Island

Ocean

Two low mushroom islands with giant red and brown mushrooms in open blue sea — The two mushroom islands, looking east.From -288, 98, -10, facing east

Screenshots

Mycelium slopes with giant red and brown mushrooms, a second island across the channel — Giant mushrooms on the islands at -218, 63, -10.From -218, 98, -80, facing south

Ocean monument outline under clear water, a mushroom island on the horizon — The ocean monument at -336, 63, -208.From -336, 98, -278, facing south

Top-down view of the square ocean monument under open water — The monument from above.From -336, 153, -208, looking straight down

Dark shipwreck shape under the water, with two mushroom islands behind — The sunken shipwreck at -288, 63, 32.From -358, 98, 32, facing east

Tuff brick room with copper bands and an oxidized copper floor, a deepslate cave opening beside it — Inside the trial chambers at -240, -29, 208, a cutaway view.From -239, -27, 207, facing east

Select a screenshot to open it at full size.

Biome map

Open the Java 26.3 seed map

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Drag to pan, scroll or pinch to zoom. Select a marker to find it in the list.

The seed map shows this world’s biomes and predicted structures with its Java 26.3 model. Its markers are predictions, like the spawn facts. Only the Coordinates table was checked in game.

Seed

16669324208218993

Create a Java 26.3 world and enter this number exactly, including any minus sign. A seed recreates generated terrain, not player builds.

Coordinates

Each structure and biome was found at or near these coordinates in Java 26.3.

Location	X	Y	Z
Ocean monumentThe monument's stepped outline shows clearly through open water. The mushroom islands stand on the horizon to the south-east.Ocean monument found at these coordinates	-336	63	-208
Mushroom fieldsTwo low mycelium islands with giant red and brown mushrooms, split by a narrow channel of shallow water.Mushroom fields biome found at these coordinates	-218	63	-10
ShipwreckA dark wreck shape on the sea floor in open water, with the mushroom islands to the east.Shipwreck found 12 blocks away	-288	63	32
Trial chambersTuff brick and copper rooms with copper bulbs and oxidized copper floors, cut open by deepslate caves with lava.Trial chambers found at these coordinates	-240	-29	208

About this world

This seed has two small mushroom islands side by side around -218, 63, -10, split by a narrow channel. Both are low mycelium ground with giant red and brown mushrooms on top, and open ocean all around. The outline of an ocean monument shows through the water about 230 blocks north-north-west, at -336, 63, -208, with grassy islands on the horizon.

A shipwreck lies on the sea floor about 80 blocks west-south-west of the islands at -288, 63, 32; it shows as a dark shape under the water. The trial chambers are underground at -240, -29, 208, about 180 blocks south of the wreck.

How to get there

In Java Edition 26.3, choose Create New World, open the World tab and enter seed 16669324208218993.
Set Game Mode to Creative or turn Allow Cheats on, and press F3 to show your coordinates.
Run /tp @s -218 100 -10 to arrive above the mushroom islands.
For the ocean monument, run /tp @s -336 100 -208. For the shipwreck, run /tp @s -288 100 32 and dive to the sea floor.
The trial chambers are underground at -240, -29, 208. Run /tp @s -240 -29 208, and bring torches or night vision in survival.

Questions

How far is the ocean monument from the mushroom islands on seed 16669324208218993?

About 230 blocks north-north-west. The monument is at -336, 63, -208 and the mushroom fields point is at -218, 63, -10.

Can I see the shipwreck from the surface?

Yes, as a dark shape on the sea floor near -288, 63, 32. The wreck sits between y 38 and 46, so you need to dive about 20 blocks to reach it.

Where are the trial chambers?

Underground at -240, -29, 208, about 180 blocks south of the shipwreck. They span y -50 to 3.

Does this seed work on Bedrock or other versions?

We verified it only in Java 26.3. Bedrock and other Java versions may generate a different world from the same seed.

Verified in game

Verified in game in Minecraft Java 26.3 on 2026-09-30. We checked the listed locations and reviewed the in-game screenshots before publication. Verification covers the listed structures and biomes in that version only, not the world spawn, chest loot or other versions. About verified seeds

Spawn and nearest structures

Predicted with the seed map’s Java 26.3 model and not checked in game. Distances are measured from the estimated spawn.

Estimated spawn: X -528, Z -32
Surface height: About Y 66
Spawn biome: Plains

Nearest structures

Structure	X	Z	From spawn
Ruined portal	-624	64	136 blocks
Buried treasure	-599	121	169 blocks
Ocean ruin	-288	16	245 blocks
Shipwreck	-288	32	248 blocks
Ocean monument	-336	-208	260 blocks
Trial chambers	-240	208	375 blocks
VillagePlains village	-960	208	494 blocks
Trail ruins	-496	-688	657 blocks
Abandoned camp	-848	672	773 blocks
Ancient city	-1472	-368	1,002 blocks
Pillager outpost	-1536	624	1,203 blocks
Igloo	-384	3120	3,155 blocks
Jungle temple	2736	1664	3,678 blocks
Witch hut	224	3888	3,991 blocks

No desert pyramid or woodland mansion within 4,096 blocks of spawn.

Nearest strongholds

Stronghold	X	Z	From spawn
Ring 1	-1372	-476	954 blocks
Ring 1	372	1892	2,124 blocks
Ring 1	1924	-1788	3,016 blocks

Surface biomes within 1,024 blocks

Deep Lukewarm Ocean 16%
Plains 14%
Ocean 11%
Deep Ocean 8%
River 6%
Forest 6%