Mount Sibayak (Gunung Sibayak) is the other hikable volcano outside Berastagi beside Mount Sinabung (2,450 m). From the distance, Sibayak is less impressive than the perfect-cone Sinabung, but the hike to the crater is less strenuous and can be done leisurely in a couple of hours. The smelly volcano crater has two peaks, Puncak Antene (2,057 m) and Tapal Kuda (2,101 m). Both can be reached with a bit of scrambling and you will be rewarded with spectacular views, but don't underestimate the danger, for the cliffs are sheer and the rim is narrow. The highest peak on Sibayak mountain is Pintau (2,212 m) but it's remote, forested and inaccessible. The are several routes to the crater but some of them, if not all, can be a bit difficult to find at the start, so ask around. If you take the route down on the backside, you will pass the hot springs at Semangat Gunung (also known as Raja Berneh). Though Sibayak is considered to be one of the most accessible volcanoes to trek in Indonesia, people still get lost or hurt - an information displayed on a rusty sign at the bottom - so take care.