boydski
Contributor
Wendy:doesn't matter if it is easy to stay on the line or not. Bottom line is if you are not with a certified guide or you are not certified to cavern or cave dive, then you do not belong in there. Like the warning sign says: even open water instructors have died in caves.
Wendy is right. If you don't have the right training and experience, you're not going to handle a simple event like a light failure, or having another diver silt-out the area and you can no longer find the line to get out. Small events like these kill divers every year that have ventured into caves and caverns without the right training.
With training, these become simple events, without, they can and do lead to the deaths of even very experienced divers every year. The cenotes seem very benign, but have also killed very experienced divers, as recently as just a few months ago.