This is my first Datapack. It's an ocean world Dimension. essentially I made it for my spawn hub so I can import an island and paste it into this dimension and use it as a hidden base in the lroe.
The datapack is pretty basic, in that it has one biome, which covers the entire world. down 200 blocks below is mud, sand, gravel with Corals sticking out of the sea floor. Kelp, and seagrass are everywhere. Ships and the usual spawning of ruins and the like exist. Happy Hunting :)
1.21.9 +

My first Biome Datapack. this Biome is meant for 1.21.10 and is just as it says, a very deep ocean with some coral at the bottom. it's otherwise flat. Relatively 200 blocks deep, with some fish schooling, but otherwise just a flat ocean with mud, sand.