Heart of the Sea — Minecraft block

Heart of the Sea

The Heart of the Sea is a rare buried-treasure item used only to craft a Conduit in Minecraft.

Block ID minecraft:heart_of_the_sea
Mod Vanilla
Game versions
1.21

Description

The Heart of the Sea is a rare, non-craftable item in Minecraft whose only purpose is crafting a Conduit. You obtain it from buried treasure chests, which you locate with a buried treasure map found inside shipwreck and ocean ruin chests. Each buried treasure chest holds exactly one Heart of the Sea. To build a Conduit, place one Heart of the Sea in the center of a crafting grid and surround it with eight Nautilus Shells dropped by drowned. When the placed Conduit is framed underwater by prismarine, prismarine bricks, dark prismarine, or sea lanterns, it activates and grants Conduit Power — giving nearby players underwater breathing, night vision, and faster mining, while damaging hostile mobs within range. The Heart of the Sea was added in Java Edition 1.13 (Update Aquatic) and works identically in Java and Bedrock editions.

Java & Bedrock Guide

How to get and use the Heart of the Sea in Minecraft

  1. 1

    Find a buried treasure map

    Search shipwreck and ocean ruin chests for an explorer map that marks buried treasure with a red X.

  2. 2

    Dig up the buried treasure

    Follow the map to the X, then dig straight down through sand or gravel to reach the chest holding one Heart of the Sea.

  3. 3

    Gather eight Nautilus Shells

    Collect Nautilus Shells dropped by drowned or bought from wandering traders to complete the Conduit recipe.

  4. 4

    Craft and activate a Conduit

    Surround the Heart of the Sea with eight Nautilus Shells, place the Conduit underwater, and frame it with prismarine or sea lanterns to unlock Conduit Power.

Important

The Heart of the Sea has no other recipe use and cannot be crafted — buried treasure is its only source.

Used in crafts

  • Conduit

Frequently asked questions

Can you craft a Heart of the Sea?

No. The Heart of the Sea cannot be crafted and is found only inside buried treasure chests located with a buried treasure map.

What is the Heart of the Sea used for?

Its only use is crafting a Conduit, made by surrounding one Heart of the Sea with eight Nautilus Shells.

Where do you find the Heart of the Sea?

It spawns in buried treasure chests, marked by explorer maps found in shipwreck and ocean ruin chests.

Does the Heart of the Sea work in Java and Bedrock?

Yes. It was added in Java Edition 1.13 and Bedrock Edition 1.4.0 and behaves the same in both.

How many Hearts of the Sea are in a buried treasure chest?

Each buried treasure chest contains exactly one Heart of the Sea.

Minecraft and all related materials are trademarks and copyrights of Mojang Studios © 2009–2026. This site is not an official Minecraft product and is not affiliated with or endorsed by Mojang Studios or Microsoft Corporation.