John Oka is our volunteer advisor to Top Shot Spearfishing. At 57 years of age, he is our “Old Man of the Sea.” His experience with spearfishing spans 4 decades. John has developed a shallow water reef diving approach that has landed him trophy sized fish time and time again in waters less than 15 feet deep. When he is not spearfishing, he is usually seen working in his machine shop where he specializes in metal fabrication, custom spearshafts, and hand forging knives. He has two sons, one of which is Christopher, who leads the Top Shot Spearfishing – Maui Team.