Requirement: Cliffs and Caves Preview datapack by Mojang

Installation:

  - Install DWAEBH and Cliffs and Caves Preview datapack by Mojang as regular datapacks on singleplayer.
  - Make sure DWAEBH is at the top in the datapack list.

Additional info (PLEASE READ)

  It's recommended to create a new world/server for DWAEBH since new chunks will feature a new world height.

  DWAEBH can be used for both singleplayer worlds and on servers
  but 1.17 snapshots seem to have some bugs with datapacks.
  It worked for me though, you can follow the server installation
  instructions below to try it out.

  Server installation
    1. Download the latest Cliffs and Caves datapack by Mojang
    2. Drag the files from this datapack zip into the Cliffs and Caves datapack and replace existing files if asked.
    3. Move the merged datapack to <server folder>/world/datapacks folder (create if it does not exist)
    4. Start the server. If you get a crash, restart the server and it should work.