Ask any scuba diving expert or enthusiast and they will tell you that, hands down, the Blue Hole in the Gulf of Aqaba is one of the most, if not the most, dangerous dive site on the planet. That is probably exactly why so many people are attracted to it. This submarine sinkhole goes down 426 feet. More than 100 divers have drowned there which is why the Blue Hole’s nickname is the Diver’s Cemetery. The main reason is that they end up diving too deep because they get confused due to nitrogen narcosis, caused by the anesthetic effect of certain gases at high pressure, and can’t find the tunnel connecting the hole to open water. One victim brought a camera with him. The video shows how he lost consciousness after a few minutes and never surfaced.