BoatWater

Resource pack that modifies a shader to make the water in boats visible.
This works in Vanilla.
This might not work correctly when using Iris/Optifine, other mods that modify rendering or other resource packs that modify shaders.
Works with Sodium tho.
Not tested with any other versions than 1.21.10, it does work in 1.21.11 tho.
Might work in older versions, but it's not tested.
You can try and then notify me if a specific version is working and I add it to the list.