Sipiso-piso Waterfall

The Sipiso-piso is a plunge waterfall in the Batak highlands of Sumatra, Indonesia. It is formed by a small underground river of the Karo plateau that falls from a cave in the side of caldera of Lake Toba, some down to lake level. Sipiso-piso is a well-known tourist attraction and a nearby vantage point offers views of the falls and lake. There are 651 steps between the bottom of the waterfall and the main entrance.