He's an expert 'scuba diver'.
competitive 'divers'
a deep-sea 'diver'
(..) The waves were feet high building, turn around go to that fucking way. - We can't - Go. We'll get broad sided and it's game over. I am a master diver, you hear that I am a master diver, no one is gonna fucking die. I got you.. Trust me okay, i love you. I love you, just hold on tight. Tight. (..)2013 The Wolf of Wall Street