John McKinna, before his untimely death in 2016, was an underwater technical supervisor and operations manager, responsible for overseeing upkeep of the main structure and support systems of the Key Largo Undersea Park, home of Jules' Undersea Lodge. A former offshore commercial diver, he was also a musician and an internationally known novelist. He was an avid free-diver and cruising sailor.
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A deep-sea thriller from the author of Crash Dive and Tiger Reef IN THE JAWS OF LIFE … AND DEATH Deep-sea diver Ben Gannon owes his life to his friend, Nick, who once saved him from certain death. So when Ben learns that Nick’s being held in an ... SEE MORE