Sipisopiso Waterfall

Sipisopiso Waterfall is a 120-meter drop in Karo where water emerges from an underground river through a cave opening in the rock face. The water falls in a clean vertical line, cutting through the air as it descends past layered rock walls to the pool below.

This waterfall developed naturally over thousands of years through water flowing within the ancient Lake Toba caldera. The underground river carved through the Karo plateau, eventually breaking through the rock face to create the falls we see today.

Local Karo people incorporate this site into their spiritual practices and daily connection with the highlands, viewing the flowing water as part of their relationship to the natural environment. The falls hold meaning in how communities understand their place within these mountains.

Reaching the base requires descending around 800 meters down steep stairs, taking roughly 45 minutes each way. Wear sturdy shoes and bring water, as the descent can be tiring and there is little shade along the path.

What makes this waterfall unusual is that water suddenly pours from the rock face without any visible surface stream feeding it from above. The underground river remains hidden, giving the illusion that the water emerges mysteriously from the stone itself.