Updated: Jul 23
Please refer to the below images to know which caves are allowed to be built in or not.
Green star for Allowed, Red Star for No Building.
To view the caves in more detail, refer to this link: https://ark.gamepedia.com/Caves
*Please note you cannot prevent access to or build in areas leading to the Jump Puzzle cave - however you can build inside Spider Cave and Puzzle Water Cave.
Further Valguero Caves:
Oil Cave & Waterfall Resource Cave will be allowed to be built in also
The OP Tree in Aberration Zone on Valguero will be blocked
The Green Obelisk cave will be blocked
Lava cave is not allowed to be built in