- About Us
Formula Freediving is a brick & mortar and online store that specializes in freediving and spearfishing. Located in Marathon, FL, we are the largest freediving and spearfishing store in the Florida Keys. In addition to selling equipment we offer F.I.I. (Freediving Instructors International) freediving classes that bring much needed safety procedures to the local area as well as dramatic performance increases. You could say the reason we exist is because we got sick of driving 2+ hours to find good equipment and we knew we weren't alone!