The Phophonyane Falls Nature Reserve is a scenic, 600 ha large nature reserve and tourist destination near Piggs Peak, Swaziland. A network of footpaths through the Gobolondlo forest reaches meandering water courses which lead to the main attraction of the reserve - the 80 m high Phophonyane Falls. This waterfall has formed on a steep section of exposed gneiss. Phophonyane River in this area falls per some 240 m over the distance of 2 km. At the waterfall are exposed some of the oldest rocks in the world, dated at 3.55 billion years.