Deep Freediving Instruction

Kristin Kuba freediving
Daniel Koval deepest freediver USA
Daniel Koval descending 102m/335ft.
Kristin Kuba Deans blue hole
Daniel Koval ascending 102m/335ft.
Kristin kuba freediving in Hawaii
Kristin Kuba freediving Submarine
Swiiming with dolphins
NEWS: 9/2019 Daniel Koval wins Bronze medal at Cmas World Championships with a New Continental Record to 108m/355ft CWT.


Take your freediving to the next level, by learning from the best. Daniel Koval will teach you skills and techniques that helped him become the deepest freediver in USA.


Click below to view Daniel's course schedule for the upcoming months.




Fii level 1 Freediving course


The Fundamentals of Freediving. Beginner to intermediate course for spearos, freedivers, surfers, underwater photographers, or for anyone who would like to experience freediving.

Fii level 2 Freediving course


Taking your freediving to the next level. This is an advanced course for freedivers and spearos wanting to dive deeper and longer with a max depth of 40m/132ft.

Training Sessions


If you are already certified we offer private coaching and training sessions weekly on the Big Island of Hawaii.

Spearfishing Course


Take a spearfishing course from world renowned spearo Daniel Koval as he teaches you information that has helped him compete and place 1st in top spearfishing tournaments in Hawaii.

Junior Freediving Course
The only course in Hawaii for the future freediving generation for teens aging 12-15 years old. This course insures that your child is trained to be a SAFE freediver and is an absolute must for anyone child getting into spearfishing, freediving or any other water sport.
Private Courses

Do you have a group or are you looking for private instruction from World renown freediver Daniel Koval.

Get the most out of your experience and schedule a private course with the option to have professional underwater photos of your experience.


Freediving is a sport and like all other sports a coach is required to help you stay motivated, keep you focused and on-track, develop training plans, evaluating performance, progressing through barriers, and most of all making sure you do not injure yourself. Daniel offers monthly private coaching customized for each diver.

Fii level 3 Freediving course


The most advanced freediving course with NO max depth. Learn all the techniques skills and knowledge to develop your own training programs, concepts and nutrition plans for competitive freediving, or to achieve depths you never thought was possible.

Interested in purchasing the same equipment Daniel uses while teaching or in competition. Contact Daniel to receive a 10% discount on all Double K products.




Tel:  808-436-7046


8:00 AM - 8:00 PM

Monday - Sunday




The Fii ( Freediving Instructors International) education system that we offer sets the standard in Freediving Safety as we were the first ever freediving education system to be insured. These courses were written by 13x freediving world record holder Martin Stepanek. Daniel Koval, owner of DFI (Deep Freediving Instruction) , is Martin Stepanek's protege and has become the deepest freediver of Martin's students. Daniel started his freediving school in 2011 and has been making the freediving and spearfishing community safer with each and every course.


The owner of DFI, Daniel Koval, not only teaches freediving at the highest level, but also competes internationally in the most prestige competitions around the world. 

Daniel is currently the deepest freediver in the United States diving to 110m/360ft. and holding records in multiple freediving disciplines.

The girl behind the lens, Deep Freediving's in house underwater photographer Kristin Kuba, can be hired for private photo/ video shoots.

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© 2011 By Deep Freediving Instruction