CavesAndCliffsAddOnForWilliamWythersOverhauledOverworld-1.0.jar is a release file of the Minecraft mod Caves and Cliffs add-on for William Wythers' Overworld for Fabric, made for Minecraft 1.17. It was published on June 27, 2021 and is 0.4 MB in size. For the full description, screenshots and every other version, visit the Caves and Cliffs add-on for William Wythers' Overworld mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.