To breathe underwater in Minecraft, you have four main options: brew a Potion of Water Breathing, wear a Turtle Shell helmet, enchant your helmet with Respiration, or build a Conduit. The fastest early-game solution is a potion, but combining methods gives you the longest dive times for serious ocean exploration.
How to breathe underwater in Minecraft with a potion
The Potion of Water Breathing is the most straightforward way to extend your underwater time. It grants the Water Breathing effect, which stops your air bar from depleting entirely for the potion's duration. To brew it, you need a Brewing Stand, Blaze Powder for fuel, and a Water Bottle. Add Nether Wart to the Water Bottle to create an Awkward Potion, then drop a Pufferfish into the brew. The Pufferfish can be caught with a Fishing Rod or found naturally in warm ocean biomes.
The standard Potion of Water Breathing lasts for 3 minutes. To make it last longer, add Redstone Dust to the potion while it's still in the Brewing Stand. You can also add Gunpowder to turn it into a splash potion, letting you throw it at yourself or a friend for a shared effect.
2. Wear a Turtle Shell helmet
A Turtle Shell helmet is a craftable piece of armor that gives you a built-in Water Breathing effect. When you wear it, you gain 10 seconds of Water Breathing immediately, and the effect refreshes as long as the helmet stays on. This makes it a reliable passive option for short underwater trips, especially if you don't have potions ready.
To craft a Turtle Shell, you need 5 Scutes. Scutes are dropped by baby turtles when they grow into adults. You can breed turtles using Seagrass, then wait for the babies to mature. Once you have 5 Scutes, arrange them in a "U" shape in a Crafting Table (top row: 3 Scutes, middle row: 2 Scutes on the left and right, leaving the center empty). The resulting helmet occupies your head slot, so it replaces any other helmet you might wear. Its 10-second effect is short, but it stacks with the Respiration enchantment, making it a strong base for deeper dives.
3. Enchant your helmet with Respiration
Respiration is an enchantment that directly increases your underwater breathing time. Each level adds 15 seconds to your air supply, up to a maximum of 60 seconds with Respiration III (this includes the default 15 seconds you already have). So with Respiration III, you can stay underwater for a full minute before your air bar starts dropping, which is a significant boost for exploring shipwrecks or ocean monuments.
You can obtain Respiration from an Enchanting Table by placing your helmet and spending Lapis Lazuli, or by combining two enchanted books on an Anvil. The enchantment works on any helmet, including a Turtle Shell, so you can put it on a Turtle Shell to get both the 10-second effect and the 60-second enchantment bonus. One note: some versions of Minecraft (before 1.13) also improved underwater visibility with Respiration, but in current versions, that visibility bonus is no longer active, only the breathing time matters. While you're exploring the seabed with this extra air, you can also get coral in Minecraft to bring vibrant blocks back to your base.
4. Build a Conduit for permanent underwater breathing
If you want a hands-free, permanent solution, a Conduit is the end-game answer. A Conduit is a crafted block that, when placed underwater and activated, grants infinite Water Breathing to any player within its range. It also gives you night vision and faster mining speed underwater, making it the ultimate tool for building underwater bases or farming ocean resources.
Nautilus Shells are dropped by Drowned (a common underwater zombie) or found in fishing treasure. The Heart of the Sea is obtained from buried treasure maps, which you find in shipwrecks or ocean ruins. Once placed underwater, the Conduit needs to be surrounded by Prismarine blocks (any variant) in a 5x5 frame to activate.
Combine methods for the best results
For the absolute maximum dive time, wear a Turtle Shell helmet enchanted with Respiration III and drink a Potion of Water Breathing before you jump in. This combination is perfect for deep ocean exploration, where you might need to search for ocean ruins, mine Prismarine, or fight off Drowned without surfacing. While the Conduit is better for a fixed base, the potion-plus-helmet combo is portable and works anywhere, making it your best bet for long, uninterrupted underwater adventures.
