Where to Find Heart of the Sea in Minecraft

Heart of the Sea is associated with All Ocean biomes (Buried Treasure). Buried Treasure maps are found in Shipwreck and Ocean Ruin chests. Buried Treasure chests are always at chunk coordinate 9, 9 (dig at the X on the map). The main non-crafting route is looting it from generated structure chests.

Heart of the Sea has no crafting recipe, so the efficient approach is to go straight to its source rather than hoping to stumble on it: find it in Buried Treasure chests (100% spawn rate). Usually buried under sand or gravel on beaches, 1-3 blocks below the surface. Used to craft a Conduit (Heart of the Sea + 8 Nautilus Shells) for underwater breathing zones. Nautilus Shells from fishing, Drowned drops, or Wandering Trader purchases. Because it is chest loot, the fastest gains come from locating the specific structures listed above and clearing their chests rather than relying on chance encounters. Worth noting on the version side: Added in 1.13 (Update Aquatic). Given how rare Heart of the Sea is, most players treat each one as a milestone, so it is worth keeping it safe in an ender chest until you are ready to put it to use.

Players hunting for Heart of the Sea often look for Potion of Water Breathing, Turtle Helmet, and Ender Pearl as well, since they share locations, recipes, or a progression path. For full stats and the crafting grid, the dedicated Heart of the Sea item page has the complete breakdown.