Impenetrable silence. Crystal clear water. Fish of fantastic colors are hidden in the tangles of algae. Their cunning, their strength, their perfect austere beauty makes the heart beat faster in the chest. The hunter's instinct resists the need to surface. There is only one shot, the only opportunity...Adventure, emotions, self-control - all this is hunting by holding your breath. Marco Bardi's book for the first time brings together all the information about this unusual sport: from physical and psychological preparation to diving technique, from dive planning to hunting tactics, from choice equipment to the subtleties of legislation. The textbook will be useful for both amateurs and professionals. Marco Bardi (Grosseto, 1962) is the champion of Italy in spearfishing. Member of the “blue team” since 1987, he has achieved numerous victories in national and international competitions. Spearfishing and breath-holding instructor and founder and president of Apnea Evolution, a working group of diving research professionals. Lives in Grosseto.