• • 9/7/26 4:11 pm • 12 logs
- 4.8k views • 1 today
- save_alt 690 downloads • 2 today
- Compatibility
- Minecraft 1.21
- to version
- Minecraft 26.3 snapshot
- Changes include
- Advancements
- Functions
- Loot Tables
- Predicates
- Recipes
Added CreditThanks to Subnautica from Unknown Worlds for some ideas
- 22
- 27
- 13
Required Resource Pack
62
Datapack
1.21.4+
Diving is a Datapack for 1.21.4+ that changes the diving system by adding water pression and diving equipment.
The Datapack adds the water pressure and new items for diving and a new special enchantment :
You can use the required Texture Pack to have all the custom textures and the water pressure death message.
Datapack
1.21.4+
Diving is a Datapack for 1.21.4+ that changes the diving system by adding water pression and diving equipment.
The Datapack adds the water pressure and new items for diving and a new special enchantment :
Items
🌊 Seaglide 
Allows to move for faster underwater, gives Night Vision effect when we are underwater, can indicate where is the water surface with particles and indicates the water depth (with the max and the limit without taking water pressure). Can be used with a Nautilus to move faster with it.
Crafted with 6 Iron Ingots, 1 Iron Nugget to the left center, 1 Glowstone Dust above and 1 Redstone Dust to the right center.
🎈 Floater
Allows when you do be automaticaly propulsed to the surface when weared in your hand underwater, except if you sneak, you can also press right click to breath a bit longer but it unbloats the Floater.
Crafted with 2 Dried Kelps in the center and 3 Slime Ball on each side vertically.
🤿 Diving Mask
You can put it on your head and can breath underwater more longer and allows you to breath when you are justt below the surface, you can mine blocks faster when submerged underwater, you are a bit protected from water pressure and you can go a bit deeper underwater without taking water pressure damages. You can enchant it with Respiration, Aqua Affinity and the new enchant Water Pressure Protection.
Crafted with 2 Glass Panes horizontaly and 2 Dried Kelps above, 3 Bamboos to the right verticaly with the 3rd to the bottom center.
🏊♂️ Diving Fins
You can put it on your feet and can swim a bit faster, it slows you a little bit at the surface. You can enchant it with Depth Strider and Water Pressure Protection.
Crafted in boots craft shape with 4 Dried Kelps.
🧯 Air Tank
You can put it on your chest and can breath even more longer and go even deeper underwater without taking water pressure if you also wear the Diving Mask on your head too, otherwise you can't breath more longer with the Air Tank, but your increased swimming speed is decreased a little bit, it slows you a lot too at the surface a bit. You can enchant it with Water Pressure Protection.
Crafted with 5 Iron Ingots at the bottom with a U shape, 1 Bamboo at the top center and 2 Dried Kelps on the top sides.
Allows to move for faster underwater, gives Night Vision effect when we are underwater, can indicate where is the water surface with particles and indicates the water depth (with the max and the limit without taking water pressure). Can be used with a Nautilus to move faster with it.
Crafted with 6 Iron Ingots, 1 Iron Nugget to the left center, 1 Glowstone Dust above and 1 Redstone Dust to the right center.
🎈 Floater
Allows when you do be automaticaly propulsed to the surface when weared in your hand underwater, except if you sneak, you can also press right click to breath a bit longer but it unbloats the Floater.
Crafted with 2 Dried Kelps in the center and 3 Slime Ball on each side vertically.
🤿 Diving Mask
You can put it on your head and can breath underwater more longer and allows you to breath when you are justt below the surface, you can mine blocks faster when submerged underwater, you are a bit protected from water pressure and you can go a bit deeper underwater without taking water pressure damages. You can enchant it with Respiration, Aqua Affinity and the new enchant Water Pressure Protection.
Crafted with 2 Glass Panes horizontaly and 2 Dried Kelps above, 3 Bamboos to the right verticaly with the 3rd to the bottom center.
🏊♂️ Diving Fins
You can put it on your feet and can swim a bit faster, it slows you a little bit at the surface. You can enchant it with Depth Strider and Water Pressure Protection.
Crafted in boots craft shape with 4 Dried Kelps.
🧯 Air Tank
You can put it on your chest and can breath even more longer and go even deeper underwater without taking water pressure if you also wear the Diving Mask on your head too, otherwise you can't breath more longer with the Air Tank, but your increased swimming speed is decreased a little bit, it slows you a lot too at the surface a bit. You can enchant it with Water Pressure Protection.
Crafted with 5 Iron Ingots at the bottom with a U shape, 1 Bamboo at the top center and 2 Dried Kelps on the top sides.
Enchantment
🔩 Water Pressure Protection 
This enchantment protects you from the water pressure, like the Protection enchantment but only for Water Pressure damages, you can also but an armor to protect you from water pressure (not necessary diving equipment) and put the enchantment.
If you have the Conduit Power or the Breath of the Nautilus effects you don't take any Water Pressure damage so you don't need the enchantment with this effect.
This enchantment protects you from the water pressure, like the Protection enchantment but only for Water Pressure damages, you can also but an armor to protect you from water pressure (not necessary diving equipment) and put the enchantment.
If you have the Conduit Power or the Breath of the Nautilus effects you don't take any Water Pressure damage so you don't need the enchantment with this effect.
You can use the required Texture Pack to have all the custom textures and the water pressure death message.
12 Update Logs
Update #12 : by Loupieur 09/07/2026 4:11:49 pmSeptember 7 @ 8:11 pm UTC
Updated Datapack :
Updated Texture Pack :
Texture Pack change :
Nerfs :
Buffs :
Fixed Issues :
- Updated for 26.3
- Don't support 1.21.2-1.2.1.3 versions anymore
Updated Texture Pack :
- Don't support 1.21.2-1.2.1.3 versions anymore
Texture Pack change :
- Changed the Seaglide texture
Nerfs :
- The Diving Mask makes breath less longer (5 -> 3)
- The Diving Fins no longer give the Dolphin Grace effect but makes swim faster with another way, but less
- The Air Tank makes breath less longer (15 -> 10)
Buffs :
- The Seaglide allows to swim faster and also on sides
- The Seaglide can now show the water depth, the max and the limit before taking water pressure
- The water pressure damages starts deeper
- The Diving Mask allows to breath when you are just below the surface
- The Diving Fins and the Air Tank less slow
- The Air Tank less reduce the swim speed of Diving Fins
- The Floater can now give a little breath bonus when pressing right click, then it unbloat the Floater but can be rebloated only when you wear it at the surface
- The Floater propulses you faster to the water surface
- The Air Tank no longer make you fall faster out of water
- The Air Tank allows you to go deeper without taking water pressure while wearing a Diving Mask
- The Seaglide can be used with a Nautilus (it make moving a bit faster than a boat)
- The Breath of the Nautilus effect can also disable the water pressure
Fixed Issues :
- The Floater can less teleport in blocks
- The Seaglide makes you swim faster without teleporting
- The water pressure system is optimised by calculating the water depth and check it instead of checking in 1 command if there is water in several y axes 1 per 1
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Have something to say?
Will it work on version 1.21.11?
Subnautica is my favorite game, and I'm currently working on improving ocean biomes in my worldgen datapack, so I love this.
I have noticed what appears to be some sort of bug. It seems that the seaglide and floater stop working properly after about 30 seconds. Reloading the world reactivates them for about that same length of time, and then they stop working again. Perhaps it is related to this bug report that spams the log: "Command execution stopped due to limit (executed 65536 commands)"
(Note: I am playing on the latest 1.21.5 pre-release that uses datapack version 71)
If you consider any updates to this, might I suggest adding different colors of masks, fins and air tanks by using different dye colors in the recipes alongside the resin.