Minecraft’s oceans are massive, dangerous, and absolutely full of loot – buried treasure, ocean monuments, shipwrecks, coral reefs. But without the right gear, every dive feels like a ticking clock. You’re either scrambling back to the surface for air or getting shredded by guardians before you even reach the good stuff.
This guide covers the best underwater gear in Minecraft, from essential enchantments and the turtle shell helmet to the most powerful underwater tool in the game. Whether you’re raiding an ocean monument or building an underwater base, here’s exactly what you need.
Why Underwater Gear Actually Matters
The base oxygen timer in Minecraft gives you about 15 seconds underwater before you start taking drowning damage. That’s not a lot of time to explore a coral reef, let alone clear an ocean monument full of guardians. On top of that, mining underwater is painfully slow by default, movement is sluggish, and visibility is terrible in the deep ocean.
The right gear doesn’t just make underwater exploration more comfortable – it completely transforms it. With a proper setup, you can breathe indefinitely, mine at full speed, see clearly, and move as fast as you would on land. Here’s how to get there.
The Best Underwater Enchantments
Enchantments are the foundation of any good underwater loadout. Before you even think about diving into an ocean monument, these are the ones you need to know.
Respiration III (Helmet)
Respiration can only be applied to your helmet, and each level increases your underwater breathing time by 15 seconds. At level III, that’s a full 45 seconds of extra air on top of your base oxygen, giving you 60 seconds total before you start taking damage. That’s a massive difference when you’re navigating long corridors or hunting for buried treasure.
Aqua Affinity (Helmet)
Aqua Affinity allows you to mine as quickly underwater as you would on land. This is a must for gathering materials like Prismarine and coral, and it pairs perfectly with Respiration III for a complete underwater helmet setup. Without it, breaking blocks underwater takes several times longer than normal – which makes building or looting feel unbearably slow.
Depth Strider III (Boots)
Depth Strider is a boot enchantment that enhances your underwater movement speed. Water constantly slows and pushes you back, but with Depth Strider III you’ll move just as quickly underwater as you do on land. It also reduces the rate at which water currents push you around, making it an absolute must for traversing the ocean. Note that Depth Strider cannot be combined with Frost Walker – pick Depth Strider every time for underwater use.
Protection IV (All Armor Pieces)
Protection IV should be on every armor piece you own. Each level adds 4% damage reduction, and with Protection IV on all four pieces you’ll take 64% less damage overall. This becomes critical when you’re fighting guardians, elder guardians, and drowned mobs in ocean monuments.
Mending + Unbreaking III (All Pieces)
Mending automatically repairs your armor as you pick up XP orbs, while Unbreaking III makes your armor last longer before breaking from durability loss. Together, these two enchantments mean you never have to replace your gear – essential for any setup you’ve invested heavily in.
The Turtle Shell Helmet
If you’re still in the early to mid-game and don’t have access to full netherite armor, the turtle shell helmet is one of the best underwater items you can craft.
While equipped, the turtle shell provides the Water Breathing status effect, giving you an additional 10 seconds of underwater breathing. The effect immediately recharges after exposure to air. Combined with the base 15-second oxygen bar, that means you start every dive with 25 seconds before you even feel the pressure.
How to Craft the Turtle Shell Helmet
You need 5 scutes to craft it. Scutes are only dropped by baby turtles when they grow into adults. To get them, breed two turtles using seagrass found underwater on the sea floor. Turtles will only breed on the beach where they were born, so work with them in their natural habitat. Once they lay eggs, protect those eggs from zombies by fencing the area in – zombies are attracted to turtle eggs and will actively try to destroy them. Once you have 5 scutes, arrange them in a helmet shape across the top two rows of your crafting table.
Best Enchantments for the Turtle Shell Helmet
Stack it with Respiration III, Aqua Affinity, Protection IV, Unbreaking III, and Mending. These enchantments don’t conflict with each other, making it easy to build a complete set on a single helmet piece.
The Conduit – The Best Underwater Item in the Game
If there is one item that completely changes underwater gameplay in Minecraft, it’s the conduit. It creates a sphere of Conduit Power for all players inside who are underwater or in contact with rain. The effect allows players to breathe underwater indefinitely, gives you night vision, and increases your mining speed. On top of that, the conduit automatically attacks all enemies that come too close.
That last part is huge. A fully activated conduit damages hostile mobs like drowned and guardians within an 8-block radius. It’s breathing, vision, mining speed, and a mob deterrent all in one block.
How to Craft and Activate the Conduit
A conduit is crafted by surrounding a Heart of the Sea with eight nautilus shells in a crafting table. The Heart of the Sea can only be found in buried treasure chests, which you locate using treasure maps found in shipwrecks. Nautilus shells can be fished up, purchased from wandering traders, or looted from drowned mobs.
Once crafted, you can’t just place it and walk away. To activate it, the conduit needs to be in the center of a 3×3×3 volume of water, enclosed within a frame built from prismarine, dark prismarine, prismarine bricks, or sea lanterns. A minimum of 16 blocks are required to produce an effective range of 32 blocks. A fully powered conduit can reach up to 96 blocks in every direction, making it capable of supporting entire underwater builds with a single conduit.
The conduit is the endgame solution for underwater bases. Once it’s up and running, you don’t need potions, enchantments, or anything else to breathe – you’re completely free to build and explore within its range.
Potions of Water Breathing
Before you have a conduit or a full enchanted setup, potions are your best friend for temporary dives. To brew a Potion of Water Breathing, you need a pufferfish, a water bottle, and blaze powder. An extended version using redstone dust will stretch the effect to 8 minutes – more than enough time for most ocean monument runs or treasure hunts.
The Complete Underwater Loadout
Here’s how everything comes together for the best underwater gear setup in Minecraft:
Helmet: Netherite or Diamond helmet with Respiration III, Aqua Affinity, Protection IV, Unbreaking III, and Mending. Mid-game, swap in the Turtle Shell Helmet with the same enchantments.
Chestplate: Protection IV, Unbreaking III, Mending.
Leggings: Protection IV, Unbreaking III, Mending.
Boots: Depth Strider III, Protection IV, Feather Falling IV, Unbreaking III, Mending.
Weapon: A trident with Impaling V and Loyalty III for underwater combat against guardians and the drowned. Impaling deals massive bonus damage to all aquatic mobs in Java Edition.
Base setup: A conduit built with a full prismarine frame for indefinite water breathing, night vision, and mining speed within range.
Backup: Potions of Water Breathing (extended) in your hotbar for dives outside your conduit’s range.
Common Mistakes to Avoid
The biggest mistake players make is jumping into an ocean monument without any underwater gear at all. Guardians deal significant damage, the elder guardian inflicts Mining Fatigue III, which makes breaking blocks nearly impossible, and the corridors are long. Always prepare before you dive.
The second most common issue is putting Frost Walker on your boots instead of Depth Strider. Frost Walker can actually be an inconvenience underwater – it freezes water around you and can break water streams. Depth Strider is almost always the better choice for ocean exploration.
Finally, don’t skip Aqua Affinity just because it seems minor. Mining underwater without it is painfully slow – and if you’re building an underwater base or clearing out an ocean monument room by room, that slowness adds up fast.
Once you’ve got Respiration III and Aqua Affinity on your helmet, Depth Strider on your boots, and a conduit set up in your base, the ocean in Minecraft stops being an obstacle and starts being one of the most rewarding biomes in the game. The loot, the monuments, the building possibilities – it’s all right there waiting for you. You just need the right gear to reach it.
