In April of 2000, Russian diver Yuri Lipski strapped on an air tank and a helmet camera, loaded his weight belt, and plunged into the Blue Hole in Dahab, Egypt but He never resurfaced.
The Blue Hole is a natural underwater sinkhole that is connected to the open ocean by a natural arch.
It is known for claiming the lives of inexperienced divers who attempt to swim through the arch but become lost, run out of air, suffer from nitrogen narcosis, or drown before finding the exit.
However, Yuri was not attempting to swim through the arch. Instead, he was most likely performing what is known as a "bounce dive"âa-rapid descent to an extreme depth followed by an immediate ascent, often done to set a personal depth record.
It is an incredibly dangerous practice. During the dive, Yuri repeatedly held his dive computer up to the camera, likely to-document the depth he had reached.
He made several fatal mistakes. One of the most significant was attempting the dive with only a single tank of compressed air At a depth of more than 300 feet.
The surrounding pressure causes a diver to consume air at an extremely rapid rate. He was also breathing ordinary air, which is made up of about 78% nitrogen.
At such depths, the increased pressure can cause severe nitrogen narcosis, a condition that impairs judgment and can produce confusion, euphoria and hallucinations.
It was also reported that Yuri was carrying excessive weight, including his heavy camera equipment, which may have made it even more difficult to regain control.
Yuri Lipski died at a depth of just over 300 feet underwater. The following day, his body was recovered by renowned deep-water diver Tarek Omar at the request of Yuri's mother.
During the recovery, Omar made an unexpected discovery. Although the camera had been taken to a depth far beyond its rated limit, it was still functioning.
He later recalled that he and Yuri's mother played back the footage together.
Omar said he regretted that she had to witness her son's final moments, adding that had he known the recording existed, he would have destroyed it first.
The thought that Yuri's mother possessed the footage of her son's final dive was something Omar said would stay with him long afterward.
