What is the furthest you have gone under the water with a single breath? 15 feet? 20 feet? 30 feet? For our guest today, Herbert Nitsch, the answer is 830 feet. Herbert Nitsche is the current free diving world record holder and “the deepest man on earth". He holds 33 world records in different free diving disciplines, which range from using weights and floatation to assist to no assistance at all.