The atmosphere crackles with electricity, the air is close, and in the distance a towering column of rotating air and water approaches. Such a sight might be enough to scare the wits out of some people, but for Mladen Duka, the photographer who took these awe-inspiring photos, the thrill of the situation overcame any fear. Just. A fast retreat was still in order. “Who could think that an ordinary morning walk from Bol to Murvica, two small villages on island of Brach, Croatia, would be so exciting?” he wonders.