JAVA 26.3 · VERIFIED IN GAME

Mushroom island by a coastal stone arch, with an ocean monument and trial chambers

Page updated October 4, 2026

A small mushroom island sits in clear sea near a forested coast, where a tall stone arch rises above the trees.

Ocean monument

Ruined portal

Trial chambers

Mushroom fields

Island

Ocean

Mushroom island with giant red and brown mushrooms in clear sea, a forested coast and tall stone arch behind — The mushroom island at 282, 63, -138, with the stone arch to the south-west.From 282, 98, -208, facing south

Screenshots

Small island covered in giant red and brown mushrooms in open teal sea — The island seen from the south.From 282, 98, -68, facing north

Clear sea beside a headland of steep rock cliffs with acacia trees and stone spires on top — The sea over the ocean portal at 144, 63, 48.From 214, 98, 48, facing west

Ocean monument outline on the sea floor under clear water, a wooded shore and small islet behind — The ocean monument at -304, 63, -176.From -304, 98, -106, facing north

Tuff brick hall with orange copper trim and a green copper floor, seen from above the floor — Underground cutaway view inside the trial chambers at y -29.From 63, -27, 31, facing west

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

41006135150685160

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 outline shows on the sea floor through clear water. A wooded shore and a small grassy islet lie to the west and north, and rock spires rise to the south-east.Ocean monument found at these coordinates	-304	63	-176
Mushroom fields islandA small mycelium island with giant red and brown mushrooms. A forested coast with a tall stone arch lies to the south-west.Mushroom fields biome found at these coordinates	282	63	-138
Trial chambersTuff brick walls with copper trim and green copper floors, open to deepslate caves. The chambers span y -53 to 20.Trial chambers found at these coordinates	64	-29	32
Ocean ruined portalClear sea next to a headland with steep rock cliffs and acacia trees. The portal sits on the sea floor between y 55 and 61 and shows only faintly through the water.Ruined portal found at these coordinates	144	63	48

About this world

This seed has a small mushroom island at 282, 63, -138, covered in giant red and brown mushrooms. It sits in clear teal sea with seagrass on the bottom. To the south-west, a forested coast climbs to a tall stone arch and rock spires with acacia trees on their ledges.

An ocean ruined portal lies on the sea floor at 144, 63, 48, about 230 blocks south-west of the island, with the stone arch headland just beside it. Trial chambers are underground at 64, -29, 32, about 80 blocks west of the portal. The ocean monument is far to the west, at -304, 63, -176, about 590 blocks from the island, off a wooded shore.

How to get there

In Java Edition 26.3, choose Create New World, open the World tab and enter seed 41006135150685160.
Set Game Mode to Creative or turn Allow Cheats on, and press F3 to show your coordinates.
Run /tp @s 282 98 -138 to arrive above the mushroom island.
For the ocean portal and the stone arch, run /tp @s 144 95 48. The portal is on the sea floor below, around y 55 to 61.
The trial chambers are underground at 64, -29, 32. Run /tp @s 64 -29 32, and bring torches or night vision in survival.
For the ocean monument, run /tp @s -304 95 -176 and look down into the water.

Questions

How far is the ocean monument from the mushroom island?

About 590 blocks west. The monument is at -304, 63, -176 and the island is at 282, 63, -138. The ocean portal and the trial chambers lie between them in the south.

Where is the stone arch?

On the forested headland beside the ocean portal at 144, 63, 48. It is tall enough to see clearly from the mushroom island, about 230 blocks to the north-east.

Can I see the ocean ruined portal?

Only faintly. It sits on the sea floor between y 55 and 61, a few blocks under the surface at 144, 48, so swim down to look at it.

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 -48, Z 80
Surface height: About Y 66
Spawn biome: Windswept Savanna

Nearest structures

Structure	X	Z	From spawn
VillageSavanna village	-160	112	116 blocks
Trial chambers	64	32	122 blocks
Ruined portal	144	48	195 blocks
Ocean ruin	112	-160	288 blocks
Shipwreck	-96	-208	292 blocks
Abandoned camp	-384	16	342 blocks
Ocean monument	-304	-176	362 blocks
Jungle temple	-496	704	768 blocks
Buried treasure	-327	-791	915 blocks
Ancient city	-1040	-320	1,070 blocks
Trail ruins	-1040	-384	1,095 blocks
Pillager outpost	624	2128	2,155 blocks
IglooBasement	320	-2768	2,872 blocks
Witch hut	2592	-1168	2,920 blocks
Woodland mansion	-3088	1376	3,305 blocks

No desert pyramid within 4,096 blocks of spawn.

Nearest strongholds

Stronghold	X	Z	From spawn
Ring 1	-1484	164	1,438 blocks
Ring 1	820	-2124	2,369 blocks
Ring 1	1524	1892	2,399 blocks

Surface biomes within 1,024 blocks

Deep Lukewarm Ocean 24%
Mangrove Swamp 17%
Lukewarm Ocean 11%
Jungle 8%
Savanna 6%
Warm Ocean 5%