Daniel Koval, owner of DFI (Deep Freediving Instruction) , is a student of Martin's and has gone on to become the deepest freediver in all of North America diving to depths over 110m/360ft on a single breath of air. Daniel started his freediving school in 2011 and has been making the freediving and spearfishing community safer with each and every course.
 
Daniel not only teaches freediving at the highest level, but also competes internationally in the most prestige competitions around the world. His dedication to the sport has earned him 6 US National records, 2 North American Continental records, and 2 consecutive years of bronze medals at the CMAS World Championships. With over a decade of experience free diving, Daniel has been able to share his incredible amount of knowledge in the sport to help others progress steadily and most importantly safely.

Daniel's assistant instructor, Kristin Kuba, is also an accomplished and active competitive freediver. One of the youngest females in US freediving, she has set 4 national records and is diving to depths over 80m/262ft.
 
Kristin has an immense passion for the sport and enjoys sharing the world of freediving with others. Freediving has been life changing for her and she believes it can be a healthy addition to anyone's lifestyle. She aims to help grow the community here in Hawai'i and bring more awareness of the sport in the US.

The girl behind the lens, Deep Freediving's in house underwater photographer Kristin Kuba, is also available for underwater photo/video hire.

Daniel and Kristin's Top Picks