: With no food and thinning oxygen, his only sustenance was a single bottle of Coca-Cola he found floating in the wreckage. The Miraculous Rescue
Despite the trauma of being the sole survivor, Harrison eventually faced his fear of the water. In 2015, he became a professional diver himself, trained by the very team that had rescued him from his "underwater tomb". Harrison - Underwater
If you'd like, I can find more from the divers who found him or details on the physics of the air pocket that kept him alive. : With no food and thinning oxygen, his
South African saturation divers were eventually sent to the wreck, but they were tasked with recovering bodies, not finding survivors. he became a professional diver himself