An open skylight in the top of this cave lets sunbeams flood in, and wafting incense smoke heightens the effect. I recently visited this cave in Phetchaburi Province about three hours southwest from Bangkok and really enjoyed it. It's been a meditation retreat for Buddhist monks for hundreds of years and the cave is full of Buddha statues. I cut together this short video for the travel page I run with @freelancestories
https://youtu.be/-kCGEdrPuNM