(From The 06/20/2020 Show) Show guest Joe Sheridan of Waterman Survival joins the program to talk ‘free diving’ today. What is that you ask? A sport that includes competition and non-competitive outings, and is used for everything from military maneuvers, spear fishing, big wave surfing, and just plain underwater exploring. Check out course information here: https://www.watermansurvival.com/