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OVERWORLD · OCEAN

Ocean Monument

Large prismarine buildings guarded by guardians and three elder guardians. Players raid them for sponges, gold, Tide armor trims, and decorative blocks, or build guardian farms there.

Outline of an ocean monument on the sea floor seen through clear water, a savanna coast on the right
Ocean monument at 80, 63, -176Seed -5222399596891977076 · Java 26.3

From the Minecraft Wiki, summarised

How it generates

Generates underwater, with pillars reaching down to the seabed. Java needs deep-ocean biomes within a 16-block square radius of the center and aquatic biomes within a 29-block square radius. In Bedrock the roof is at Y=56.

Biomes

  • Deep Ocean
  • Deep Cold Ocean
  • Deep Frozen Ocean
  • Deep Lukewarm Ocean

Placement values are for Java 26.3, which uses a triangular spread. Each monument spawns three elder guardians that never respawn, though ordinary guardians keep spawning. Not every monument has a sponge room, and there are no loot chests. Bedrock's added version is the Pocket Edition release.

Notable loot

  • 8 blocks of gold
  • Wet sponges
  • Tide Armor Trim Smithing Template (elder guardian drop)
  • Prismarine
  • Prismarine bricks
  • Dark prismarine
  • Sea lanterns
  • Prismarine shards and crystals (guardian drops)

Mobs

  • Guardian
  • Elder Guardian

History

  1. 1.8Java

    Introduced ocean monuments in snapshot 14w25a.

  2. 1.8.2Java

    Corrected monument generation in customized worlds.

  3. 1.9Java

    Expanded the deep-ocean area required around a monument's center.

  4. 0.16.0Bedrock

    Added monuments to Pocket Edition, the predecessor of Bedrock Edition.

  5. 1.11Java

    Added ocean explorer maps that direct players to monuments.

  6. 1.1.0Bedrock

    Added ocean explorer maps to Pocket Edition.

  7. 1.4.0Bedrock

    Allowed monuments in deep frozen, deep lukewarm, and deep cold oceans.

  8. 1.13Java

    Stopped monuments from generating retroactively in existing chunks.

  9. 1.20 / 1.20.0Java and Bedrock

    Added Tide armor trim templates as possible elder guardian drops.

  10. 26.3Java

    Made the locating map a distinct item named Ocean Monument Map and renamed its destination structure tag.

Read the full article on the Minecraft Wiki ↗

Checked in game by SeedLookout

Screenshots

Ocean monument outline on the sea floor under clear water, a wooded shore and small islet behind
Ocean monument at -304, 63, -176Seed 41006135150685160 · Java 26.3
Prismarine ocean monument visible under blue water, a long mushroom island on the horizon
Ocean monument at 240, 63, 240Seed 9141707267233856 · Java 26.3
Ocean monument outline under blue water between tall icebergs, a snowy island and spruce forest shore behind
Ocean monument at 96, 63, 64Seed 2311750628306715 · Java 26.3
Square outline of an ocean monument under shallow green water, with a mushroom island on the horizon
Ocean monument at -208, 63, 240Seed 17036737413726777 · Java 26.3
Prismarine ocean monument under blue water, steep rocky islands with forest behind
Ocean monument at 256, 63, 256Seed 839695448267121 · Java 26.3

Screenshots from our in-game verification of each seed. Select one to open it at full size.

Seeds with this ocean monument

We found each ocean monument at these coordinates in the seed's Java version. Other versions and Bedrock may generate a different world.

SeedVersionVariantX, Y, Z
Mushroom island off a savanna coast, with an ocean monument and trial chambers-5222399596891977076Java 26.3Ocean monument80, 63, -176
Mushroom island by a coastal stone arch, with an ocean monument and trial chambers41006135150685160Java 26.3Ocean monument-304, 63, -176
Ocean monument between a jungle coast and a mushroom island17036737413726777Java 26.3Ocean monument-208, 63, 240
Long mushroom island near an ocean monument, with a sunken ruined portal and shipwreck9141707267233856Java 26.3Ocean monument240, 63, 240
Mountain ruined portal in the shallows off a forested island, near an ocean monument839695448267121Java 26.3Ocean monument256, 63, 256
Ocean monument among icebergs in a frozen ocean, with an igloo to the north2311750628306715Java 26.3Ocean monument96, 63, 64
Two small mushroom islands between an ocean monument and a sunken shipwreck16669324208218993Java 26.3Ocean monument-336, 63, -208
Ruined portal on a mushroom island, with an ocean monument7225203405476503Java 26.3Ocean monument-160, 63, 288
Small mushroom island with a shipwreck and an ocean monument-8531640712777030001Java 26.3Ocean monument-288, 63, 64
Ocean monument between a mushroom island and a desert coast38756481678573377Java 26.3Ocean monument96, 63, -144
Jungle coast with a jungle temple, giant ruined portal and shipwreck1282831805522879Java 26.3Ocean monument-192, 63, 272

Sources

The description, generation rules, variants, loot, mobs and history above are summarised from the Minecraft Wiki article Ocean Monument, retrieved 2026-09-30. Minecraft Wiki text is available under CC BY-NC-SA 3.0. We have not checked these facts in game.

Seed numbers, coordinates and screenshots come from SeedLookout's own in-game verification. About verified seeds