The 5 Italians and military rescue swimmer who died
So 5 Italians died while diving a cave and then the rescue swimmer who tried to retrieve their bodies also died- what actually happens in these situations? I’ve hear sand read of similar situations and accidents previously. Do they get lost in a cave and can’t find their way out before their tanks run empty? Are they not tethered with a guideline back the way they came? Is it commonly equipment failure?
Edit- to be clear, I’m not asking for speculation on what happened to the divers specifically, in a general sense, what typically causes and/kr contributes to these accidents when they happen?