LONG ISLAND, Bahamas — As Nicholas Mevoli lay on his back, floating in the azure sea, attempting to relax, his exhales were audible. The countdown had begun, and he prepared to dive into Dean’s Blue Hole, hoping to reach 72 meters on a single inhalation, with no fins or supplemental oxygen. He began sipping the air, attempting to pack as much oxygen in his lungs as possible...Continue Reading