Underwaterbiome mod for minecraft 1.14. Please download the file from the curseforge https://www.curseforge.com/minecraft/mc-mods/underwater-biome

IMPORTANT The mod with of minecraft version 1.14 is no longer maintained. I am considering migrating to 1.16 with huge changes, and is now under development. Link: https://github.com/zljtt/underwaterbiome-1.16.5