Sipiso Piso Waterfall is located at the edge of Lake Toba’s giant caldera. 120 meters high, the waterfall is around 1,300 meters above sea level. The majority of the local population are farmers and fishermen who use the waterfall which flows to the agricultural area. Sipiso Piso Tongging area is the end of the geological and morphological evolutions of Toba caldera tens of thousands of years ago which create beautiful nature in the area. DON’T MISS 1. Sipiso Piso Waterfall 2. Evidence of post-supervolcano volcanic activities 3. Onion farms and mango biodiversity YOUR VISIT Tongging, Merek, Karo Regency, North Sumatera 22173. Mon to Sun from 7 am to 5 pm.