Caves & Canyons Data Pack Wiki & Guide

Yes, you should start a new world for the data pack to generate caves and canyons properly. If you apply it to an existing world, only newly explored chunks will have the modified generation—your old chunks will keep their original caves.

Rift valleys generate naturally as you explore, appearing as massive canyon-like structures that cut deep into the earth. They're most noticeable near the surface where they create dramatic vertical drops, and they extend down to very deep levels.

Yes, the data pack includes customizable settings for cave size and shape—you can modify noodle caves, spaghetti caves, and other cave types to your preference. Any changes you make only affect new chunks you explore, leaving already-generated areas unchanged.

Mineshafts now spawn on dry land with a spiral stone staircase and wooden supports, making them accessible and walkable instead of buried underground. This gives you a clear entry point to descend into the mineshaft structure.