Martin Simard, 57, who was on vacation in Playa del Carmen in Mexico’s Yucatan peninsula, was an experienced diver and was well-known amongst the region’s diving community.
The day before his death, he had to undergo a hyperbaric chamber treatment after resurfacing too quickly while scuba diving.
Decompression sickness, also known as the bends, can only be treated by entering a pressurized chamber.
The following day, he returned to the Caribbean, scuba diving in underwater caves. However, he had to be helped to the surface after starting to feel ill.
Simard was an engineer living in Quebec City.
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