Updated for Java Edition 26.3 (October 2026).
The mushroom field shore no longer exists. It was the narrow coastal strip around mushroom islands, a separate biome from the island itself. In Java Edition 1.18 (2021) it was merged into the mushroom fields biome, so new worlds never generate it. The island and its mooshrooms are still there.
| Status | Removed; merged into mushroom fields |
|---|---|
| Old biome ID | minecraft:mushroom_field_shore |
| Added | 2011, as Mushroom Island Shore |
| Renamed | Java Edition 1.13 (2018), to Mushroom Field Shore |
| Removed | Java Edition 1.18 (Caves & Cliffs: Part II, 2021) |
| Where to go instead | Mushroom fields |
What the mushroom field shore was
Before 1.18, every mushroom island had a ring of its own shore biome: the low strip of mycelium where the island met the ocean, the mushroom equivalent of a beach. It looked almost the same as the island. The ground was mycelium, mooshrooms could spawn on it and hostile mobs could not, so in practice most players never noticed they had crossed from one biome into the other.
Why it was removed
Java Edition 1.18 rebuilt world generation so that the shape of the land no longer depends on the biome. The 1.18 snapshot notes put it plainly: “A bunch of biome variants with similar features but different shapes have been merged into one since the shape is controlled independently now” (Minecraft Snapshot 21w40a). Shore and hill variants like this one existed only to give a biome a different shape, so they went, and their land became part of the main biome. The mushroom field shore became mushroom fields.
That is why /locate biome minecraft:mushroom_field_shore doesn’t work in current versions: the biome ID no longer exists. Search for minecraft:mushroom_fields instead.
Where to go instead: mushroom fields
Everything people looked for on a mushroom field shore is on the mushroom fields biome today: mycelium, giant mushrooms, mooshrooms and the guarantee that no hostile mobs spawn on the surface. It is one of the hardest biomes to find. In our sample of 300 Java 26.3 seeds, mushroom fields covered 0.14% of the surface and the nearest one was a median 2,789 blocks from spawn. Only 6% of seeds had one within 1,000 blocks, 24% within 2,000 and 85% within 5,000.
They almost always sit in deep ocean, so look offshore rather than inland: in our sample, nearly every mushroom fields edge touched deep, deep cold or deep lukewarm ocean. A boat and a long trip out to sea is the usual way to find one, or paste your seed into the biome finder to see where they are. The mushroom fields guide covers the biome itself.
How we measured
The mushroom fields numbers come from our own seed map engine, running Java Edition 26.3 world generation. We generated 300 random seeds and sampled every 16th block across a 10,240 by 10,240 block square centered on each world’s spawn. “Covered” is the biome’s share of those samples, and the distances are to the nearest mushroom fields sample.
