Leonardo D'Imporzano (born March 19, 1982, in La Spezia, Italy) is an Italian free-diver, an AIDA International Judge, underwater journalist, researcher conservationist, and TV personality. Pioneer of freediving under ice, he achieves the best performance under ice in Dynamic without fins at Smeraldo Lake in Val di Non (Trento, Italy) 24 February 2008 with 43 metres.[1][2][3][4]
With his team he has carried out in hyperbaric and diving medicine research, with the first-ever electrocardiogram under ice and the deepest electrocardiogram.