i want to build a fake cave
Creeper, oh man
So we back in the mine, got our pick axe swinging from side to side,
Side, side to side
This task a grueling one, hope to find some diamonds tonight, night, night
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Try using world edit a good way to make a cave with worldedit commands is "//br sphere air 5" this will create a brush you can use to hollow out a cave
CatsCraft the Youtuber and Proud Creative server Owner of CatsCraft.net
A lot of tutorials for building are found in youtube! I suggest going through caves and have a check on how they all work - entrances, sections, etc.
This is a bit of an older video but it's a nice tutorial,
Grian also did a video on caves recently, more focused on houses in caves but around the fifteen minute mark is a nice example.
This one's really detailed too,
Honestly though, caves are probably a good place to start, as long as you keep it looking natural by making sure there are no obvious squares or spheres they're quite forgiving in what looks good.
Look up tutorials. there are a lot.
I love books and minecraft.
If you mean a fake vanilla-looking cave, then just go caving while looking at how they generate. Look at the indentations on the walls, look at the odd imperfections, notice how unnecessarily frequent every stone except stone spawns, etc.