How to Find Sponge in Minecraft: Every Method Explained

Sponge is one of Minecraft's most useful — and most misunderstood — blocks. It absorbs water in a large radius, making it essential for draining ocean monuments, clearing flooded builds, or reclaiming underwater spaces. But unlike wood or stone, you can't craft it from scratch or find it just anywhere. Knowing exactly where and how to get sponge saves a lot of frustration.

What Is Sponge and Why Does It Matter?

A sponge block absorbs up to 65 surrounding water blocks the moment it's placed. Once saturated, it becomes a wet sponge, which can be dried out and reused. This makes sponge one of the few genuinely reusable utility blocks in the game — and incredibly valuable for large underwater projects.

There are two states to track:

Where to Find Sponge in Minecraft 🌊

Ocean Monuments (The Primary Source)

The only natural source of sponge in Minecraft is the ocean monument — a large underwater structure made of prismarine, found in deep ocean biomes. Inside, you'll find one or more sponge rooms: dedicated chambers filled with wet sponge blocks.

A single ocean monument contains between 30 and 60 wet sponge blocks, though the exact count varies by structure generation. These rooms are typically located toward the center or interior sections of the monument, not on the outer edges.

To reach an ocean monument, you're looking for a large prismarine structure sitting on the ocean floor, usually visible from the surface in clear water if you know what to look for. They can also be located using an Ocean Explorer Map, purchased from a cartographer villager for emeralds.

What you'll face inside:

• Elder Guardians — three spawn per monument and inflict Mining Fatigue III, slowing your ability to break blocks
• Guardians — regular enemies that shoot laser beams
• Low visibility and tight interior corridors

Mining Fatigue is the biggest obstacle. Without countering it, breaking blocks takes an enormous amount of time. Players typically use milk buckets (one bucket removes the effect immediately) to clear the debuff before mining sponge blocks.

Killing Elder Guardians

Each of the three Elder Guardians in an ocean monument has a chance to drop one wet sponge on death. This is a secondary and less reliable method compared to looting sponge rooms, but it adds to your total haul if you're clearing a full monument.

How to Dry Wet Sponge

Since sponge found in monuments is always in its wet state, you need to dry it before it's useful again. There are a few ways:

Furnace smelting is the most straightforward — place wet sponge in the top slot of a furnace with any fuel source. Each wet sponge takes one unit of fuel and produces one dry sponge. As a bonus, the smelting process also fills an empty bucket in the fuel slot with water (in Java Edition).

Dry biomes offer a passive option. If you place wet sponge in a dry or warm biome — like a desert or savanna — it dries on its own over time without needing a furnace. This quirk is less commonly used but works if you're building in those environments.

The Nether is the fastest passive method. Wet sponge dries almost instantly when placed in the Nether due to the complete absence of water in that dimension. If you're moving large quantities, carrying wet sponge through a Nether portal is a quick way to process it in bulk.

Tips for Efficiently Looting Ocean Monuments 🧱

Getting sponge efficiently depends on your preparation level:

• Bring milk buckets — at least two or three — to clear Mining Fatigue before you start breaking sponge blocks
• Use a Conduit or Potion of Water Breathing to manage your oxygen supply during extended exploration
• Night Vision potions help significantly inside the monument's darker interior rooms
• Haste potions or a Beacon with Haste counteract some of the Mining Fatigue penalty (though they don't remove it entirely)
• A Silk Touch pickaxe isn't required — wet sponge drops as wet sponge regardless of enchantment — but Efficiency enchantments speed up your mining once the fatigue debuff is cleared

The most efficient approach most players use is: drink milk → locate all sponge rooms → mine quickly before fatigue reapplies. Elder Guardians respawn fatigue roughly every minute if still alive, so many players kill them first.

Can You Craft or Find Sponge Any Other Way?

In Survival mode, ocean monuments are the only legitimate source. There's no crafting recipe for sponge, and it doesn't generate in any other structure.

In Creative mode, sponge is available directly from the inventory menu, which is useful for building or testing water drainage without hunting monuments.

In older Minecraft versions (prior to Java Edition 1.8), sponge existed but behaved differently and had no natural source — it was essentially a Creative-only block. Modern Survival mechanics changed that entirely with the introduction of ocean monuments.

Variables That Affect Your Experience

How straightforward the whole process feels comes down to several factors specific to your playthrough:

• Your current gear and enchantments — fighting Elder Guardians and navigating a monument in iron armor is a very different experience than arriving in full diamond or netherite
• Which Minecraft edition you're playing — Java and Bedrock handle some monument generation details and loot slightly differently
• Whether you've already found and looted nearby monuments — each monument can only be drained once, and sponge rooms don't regenerate
• Your world seed and biome distribution — deep ocean biomes (required for monuments) can be sparse or plentiful depending on your world

The gap between a player who's prepared with potions and good armor versus one who dives in unprepared is significant. Both will find sponge in the same place — but how smoothly that goes depends entirely on what you bring to the monument. 🎮