The waterfall system consists of 275 falls along 2.7 kilometres of the Iguazu River. Some of the individual falls are up to 82 metres in height, though the majority are about 64 metres. The Garganta del Diablo, a U-shaped 150-metre-wide and 700-metre-long cliff, is the most impressive of all, and marks the border between Argentina and Brazil. At one point a person can stand and be surrounded by 260 degrees of waterfalls. The Garganta do Diabo has water pouring into it from three sides.