Cenote Esqueleto/the Temple of Doom (Tulum, Mexico)
This spot is best known as the Temple of Doom, is very hazardous right from the start. There is no ladder into the water, so divers has to jump right in. It is strictly advised to stay in the sunlit areas of the water, because it may get incredibly dark to find a way out. Also the tight passageways might make you claustrophobic and panic. This exact Temple has claimed many lives over the past years.
Samaesan Hole (Samaesan Bay, Thailand)
This hole is 85 meters deep into the earth. It’s well known with its strong and dangerous currents, which suckes divers right in and makes it almost impossible to swim back up under all the pressure. Freaky part about it is there are a lot of unexploded bombs deep down. Samaesan Hole is a former military dumping ground, which lets divers to see more but endanger their lives at the same time.
Devil’s Cave System (Ginnie Springs, Florida)
This cave is very popular for its year-round warm temperatures, although what’s waiting below is a combination of hazards that even experienced divers worry about. This Floridian cave system has very dangerous caves such as Little Devil, Devil’s Eye and Devil’s Ear. Which has deceptively strong currents. Combining that with tiny passageways that often damage or dislodge diving equipment makes the site one of the most challenging diving spot out there.
Blue Hole (EGYPT)
This circular world wonder is known by ita contrasting hues of the deep, dark blue among light surrounding waters. The contrast difference indicates the depth, which makes it a bit easier to identify diver’s depth level. Blue Hole is 124 meters deep into the earth. All the divers from around the world gathers here to encounter the depths of the amazing hole. First half of the hole has sheer walls, which quickly changes to limestone walls as you dive deeper. Aside from the depth, the dramatic drop-off can be a major problem for inexperienced divers, causing them to become disoriented and drop too quickly.
The Shaft Sinkhole (Mount Gambier, Australia)
This is one the most amazing sinkhole of most extreme divers. To enter the depths of this cave, you need to pass through a tiny manhole too small to accommodate both them and their equipment. To pass through this narrow channel, divers has to enter the hole, before their gear lowered to them using ropes. Once they enter the hole, they find themselves among a series of very dark and winding caves. There’s always a danger of getting lost or simply not saving enough oxygen for the return to the surface, that’s been the case more than once at the sinkhole and divers have passed away beneath the surface.
German U-Boat (New Jersey)
This 73 meters deep dive site has icy cold temperature waters and tough currents, which makes this dive both dangerous and remarkable. In 1991 an American Diver discovered what was later identified as U-869, a German patrol boat used in WWII. This historical place caused three divers to loose their lives while experiencing the marvelousness of the site.
Jacob’s Well (Wimberley, Texas)
jacob’s Well is one of the most dangerous and sinister dive site in the whole state. It’s so intricate with it’s 4 different levels of underwater cave systems. Some of the narrow tunnels are lined with silt, which can stir and cloud the entire area, which makes it almost impossible to find a way back. The cloudy water causes divers to become disoriented, panic and use up oxygen more quickly. The caves in Jacob’s Well have sadly taken at least eight lives.
Eagle’s Nest Sinkhole (Weeki Wachee, Florida)
This sinkhole is mostly known as “the Mount Everest of cave diving”. Eagle’s Nest begins with a narrow tunnel that takes divers down about 20 meters into “the main ballroom”. The ballroom is a vast chamber that leads to small dark passages, which sometimes might reach up to 90 meters depth. These chambers are very dangerous for its darkness and complex cave network.
Blue Hole (Belize)
Blue Hole is situated in Belize. This submarine pothole reaches over 130 meters into the depths of the earth. It’s well known for the copious amount of diving fatalities, which is why it’s called “The World’s Most Dangerous Diving Site” and earned the title of “Diver’s Cemetery”. Even inexperienced and overconfident divers have trouble finding the tunnel connecting the Blue Hole and open water to escape the site. It is also impossible to dive the hole with single air tank. Regardless of preparation, approximately at 53 meters nitrogen narcosis kicks in, which makes the diver feel “high”. Those who dive at this spot often stumble upon old wet suits and gas tanks from divers who never made it out of The Blue Hole. The diver Yuri Lipski, brought his camera down in to the Blue Hole where he lost consciousness after 5 minutes and failed to surface. You can watch the video by clicking to the link below. Over 100 divers have lost their life to The Blue Hole.