Diamond Cave is the other cave in/on/at Railay. It's deeper and more interesting than Pranang Cave, but they're both special in their own ways.
It's 40b for adults and 20b for children. Cats are free.
And pictures inside caves, when taken without a tripod, look terrible. You should be proud that I didn't attempt bat pictures this time. Here, the inside of the cave looks like baleen.
There was actually a much more baleen-inspired formation, but my picture of it was even worse than this one. Very bad.
Just believe me that there were far more interesting formations than these.
This tree is growing under part of the cliff. When I took the picture, the air was sizzling with the sound of cicadas.