Spectacular Kravice Waterfall (Vodopad Kravica) in Bosnia and Herzegovina are one of Europe’s best-kept natural secrets. Plummeting over 98-foot (30-meter) soft tufa cliffs on the Trebizat River southwest of Mostar, the waterfalls have sliced out a natural amphitheater spanning nearly 400 feet (120 meters) as the river splits into more than a dozen separate waterfalls cascading into the lake below.