What follows is
slightly off topic, but I think it illustrates the uncertain legal status of the diving community in terms of liability.
You may know the name
Richie Kohler. He was involved with the exploration of the German U-Boat described in the book
Shadow Divers, and he teamed with John Chatterton on the TV show
Deep Sea Detectives and other shows and adventures. My memory of the details is sketchy, but Richie was sued by the family of a diver who died on a trip he led--IIRC, it was to the Andrea Doria. The diver was highly qualified, and he signed the typical waiver, which did no good. As I understand it, the basis of the lawsuit was that, in the family's opinion, Kohler had not adequately explained the dangers
of that particular dive site before the diver signed up for the dive. The suit was eventually dismissed, but Kohler went through Hell for a while.
The story, which I got from John Chatterton's written description of it, scared me. I was regularly then leading dives to a 280-foot deep sinkhole in New Mexico, and I was wondering if I needed to write a description of the known dangers of the site. I gave it a shot, but one of my former students, an attorney, stopped me. This was not her area of law, but she had learned in her training that such a statement from me could be used as evidence that I knew that the dive site was too dangerous for some of the people who were diving there. In other words, by trying to protect myself by warning people of the risk, I might actually be putting myself at risk. (Damned if you do; damned if you don't.) She really wasn't sure what was best, and she suggested I contact an attorney who specialized in that sort of thing.