I'm deep diver certified but this coming spring I plan to dive the caverns in the cenotes in Tulum.
What do you mean by "deep diver certified"? AND what does that have to do with cavern diving.
I have all necessary equipment but most importantly I'll be doing it with a full cave certified instructor and even then I won't be going farther than the reaper sign.
But are you planning on conducting all the line drills on land and in OW as cavern training standards require?
I think that if someone is not trained and qualified that person should not venture alone (alone being with other unqualified buddies) in any overhead environment.
And if you do it with someone who is qualified it becomes sort of a trust-me dive.
I made this a personnal rule and it was in good part because of what I read on SB, advice given by those who have experience in that field and who have been generous enough to share it, thank you.
My personal rule is to reasonably apply the rules of accident analysis, the first of which, is to have the training.