Performance Freediving International (PFI) is a freediving training agency founded in 2000 by Kirk Krack. Krack coached World Champion Freedivers, Mandy-Rae Cruickshank and Martin Stepanek.
Performance Freediving International (PFI), founded in 2000 by Kirk Krack, instructed World Champion Freedivers, including Mandy-Rae Cruickshank and Martin Stepanek.