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seedlookoutJAVA + BEDROCK

JAVA 26.3 · VERIFIED IN GAME

Mushroom island in a frozen sea of icebergs

A flat mushroom island with huge red and brown mushrooms sits in a deep frozen sea crowded with pale blue icebergs.

Mushroom fieldsIslandOceanSnowShipwreckTrial chambers
Flat mushroom island with red and brown giant mushrooms in a deep blue sea full of pale blue icebergs
The mushroom island among the icebergs, seen from the north.From 2, 100, -180, facing south

About this world

This seed puts a mushroom island at 2, 65, -110, about 110 blocks north of 0, 0. The island is low and flat, covered in grey mycelium and huge red and brown mushrooms. All around it is a deep frozen ocean crowded with pale blue icebergs. A snowy spruce coast with grey stone cliffs rises beyond the ice.

A shipwreck lies underwater about 275 blocks west of the island, at -272, 63, -80, among more icebergs. Trial chambers are underground about 195 blocks north of the island at 16, -25, -304, and a ruined portal is buried deep under a snowy spruce coast another 160 blocks north, at 32, 63, -464. Seeder lists this world on its Mushroom Fields page.

Coordinates

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

LocationXYZTeleport
Mushroom fieldsA flat island of grey mycelium dotted with huge red and brown mushrooms, surrounded by icebergs in a frozen ocean.Mushroom fields biome found at these coordinates265-110
ShipwreckSunk between y 49 and 57, under icebergs and patches of sea ice. It does not show clearly from above the water.Shipwreck found at these coordinates-27263-80
Trial chambersTuff brick and copper rooms with teal copper floors beside a large deepslate cave. The structure runs from y -35 up to y 24.Trial chambers found at these coordinates16-25-304
Buried ruined portalBuried deep underground between y -42 and -35, just east of the listed point. The surface above is snowy spruce forest on a stone coast by the frozen sea.Ruined portal found 1 block away3263-464

Screenshots

Grey mycelium shore with huge red and brown mushrooms, icebergs in the water and a snowy forested cliff behind
The island's edge, looking west.From 72, 100, -110, facing west
Wide view of red and brown mushroom caps on an island, icebergs across the sea and a snowy cliff coast beyond
Wide view over the island and the frozen sea.From 122, 145, 10, facing north-west
Tuff brick and copper walls with a teal copper floor, a dark cave opening on the left
Inside the trial chambers at y -25.From 15, -23, -303, facing south
Snowy spruce forest on a stone headland beside frozen water with icebergs
The snowy coast over the buried ruined portal.From 152, 147, -344, facing north-west

Select a screenshot to open it at full size.

How to get there

  1. In Java Edition 26.3, choose Create New World, open the World tab and enter seed -7078951977818456085, including the minus sign.
  2. Set Game Mode to Creative or turn Allow Cheats on, and press F3 to show your coordinates.
  3. Run /tp @s 2 100 -110 to arrive above the mushroom island.
  4. For the shipwreck, run /tp @s -272 95 -80, then dive to about y 50.
  5. For the trial chambers, run /tp @s 16 -25 -304. They are underground, so bring torches or night vision in survival.
  6. The ruined portal is buried far below 32, 63, -464, between y -42 and -35. Use /gamemode spectator and /tp @s 37 -39 -460 to reach it, or dig down in survival.

Questions

How far is the mushroom island from 0, 0?

About 110 blocks north. The island's listed point is 2, 65, -110, and it sits in a frozen ocean full of icebergs.

Can I see the shipwreck from the surface?

Not clearly. It lies between y 49 and 57 at -272, -80, under icebergs and sea ice, so dive down to find it.

Where are the trial chambers?

Underground at 16, -25, -304, about 195 blocks north of the mushroom island. The structure reaches from y -35 up to y 24.

Does this seed work on Bedrock or other Java versions?

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

Verification

We verified this seed by hand in Java 26.3 on 2026-09-30, and the screenshots come from the game. Verification covers the listed structures and biomes in that version only, not the world spawn, chest loot or other versions. About verified seeds

Biome map

The seed map shows this world’s biomes and predicted structures with its Java 26.3 model. Its markers are predictions; the coordinates above are verified.

Open the Java 26.3 seed map
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