Humans have no boundaries in seeking thrills and adventure. In this clip, a man named George Kourounis took the risk of boating on the world largest lake sulfuric acid at the bottom of the Kawah Ijen volcano crater in Indonesia. The acid is so strong (ph of 0.5) that an aluminum soda can literally sizzles when it touches the lake! This is quite risky and we give you advice that don’t even attempt to try it. Just watch it instead!