Minecraft Mushroom Island Buried Treasure Seeds
By the ChunkScan Team · Updated August 2026
Buried treasure chests are hidden under beaches and always hold a heart of the sea. These seeds put one near a mushroom island, so you can dig up the chest and settle on a safe island in the same trip. Every seed below was scanned and has a mushroom island and buried treasure near spawn. Of the Java 26.3 seeds we scanned, 9,157 have the biome within 512 blocks of spawn and the structure within 1,000 blocks; for half of them the structure is 391 blocks away or closer. Versions with at least 12 such seeds in our scan: 1.18, 1.19, 1.20, 1.21, 26.2 and 26.3.
Seeds with a mushroom island and buried treasure near spawn
Distances in blocks from spawn
Already have a world? Open any seed in the Minecraft seed map to see its biomes and structures, or browse all seed tools.
A conduit start and a safe island
Buried treasure always has a heart of the sea, and often iron, gold, emeralds, TNT and sometimes diamonds. The heart of the sea and nautilus shells craft a conduit, which gives water breathing and night vision around it. A conduit by a mushroom island makes a good ocean base.
Is the treasure buried on the mushroom island?
No. Buried treasure generates under beaches, and mushroom fields have no beach of their own. On these seeds the chest is on a beach within 1,000 blocks of spawn. Open the seed map for its position.
How do I find buried treasure without a map?
The seed page gives its coordinates. Go there and dig down a few blocks into the sand. The chest is usually just below the surface of the beach.