In 2013, Harrison Okene turned into an accidental aquanaut when he survived over 60 hours at the lower part of the sea by In 2013, Harrison Okene became an accidental aquanaut when he survived more than 60 hours at the bottom of the ocean by breathing through an air pocket.

In 2013, the 29-year-old Nigerian cook was working installing a towing boat when it overturned in heavy seas. The 12-man group was there to stabilize an oil tanker at a platform in the Atlantic Ocean. They were around 32km off the Nigerian coast at the time of the incident. The ship eventually settled 30m down on the sea bed, upside down. Everyone drowned, except Okene.

He was wearing simply his underpants, caught in an air bubble somewhat more than a meter thick, alone, and mostly drenched in cool water. He was crying and calling on Jesus to rescue me. He prayed so hard. He was so hungry and thirsty and cold and He was just praying to see some kind of light.

After almost around more than two-and-a-half days, seemingly beyond help at the bottom of the ocean, Okene’s prayers were answered when he spotted a light.

A group of South African jumpers had come to assess the vessel and recover the bodies. Okene delicately arrived at his hand out to contact a diver's arm. So as not to scare him, Okene then, at that point, pulled out his arm and waved. A recovery camera got the diver's shocked response at seeing a man alive. Maybe he'd seen a ghost.

Although Okene swore never again to go near the ocean, he became a certified commercial diver in 2015. The rescue diver who discovered him at the bottom of the ocean presented him with his diploma.