In this particular case it was a very spacious set of cenotes with a guiding string along the safe route. So it felt pretty safe. It was also the day after we h

In this particular case it was a very spacious set of cenotes with a guiding string along the safe route. So it felt pretty safe. It was also the day after we had done some open water diving so the dive master got a feel for our skills (I would assume) and none of us were particularly foolish. I doubt I'd ever want to go diving in actual caves with anything even remotely tight for space.