Idk, pretty much all the deaths I hear about are open water divers who decided to go into a cave, ignoring the part of their training where someone shouts at them for an hour to never even think about going in a cave even a teeny little bit, no not even just the entrance, no not even just to look.

This includes people going in to recover bodies. You’ll notice the people dying doing that are often military divers who’ve never been trained for cave diving (true of the recent Maldives incident and also the diver in the Thai cave rescue). I don’t say this to be like oh training is some magical panacea but rather that you specifically really should not go in a cave even if you really want to without getting cave trained first. It’s not even remotely the same thing as open water diving.

Oh and yeah it’s definitely cave diving that’s the insane one. Never done it myself and never will but it’s an interest of mine because of all the procedure, backups of backups, redundancy etc needed to make it safe. It’s more like spacewalking in that regard.