Čunguljski skok waterfall is on the Toplodolska river, near village Topli Do, on Stara planina mountain. It is 40 m high and it is located at 1400 m altitude. This waterfall is located at the base of mountain peak Čungulj and it is named after it. It is surrounded by a thick forest, rather hard to reach and it requires a guide to find. It was discovered by a group of researchers in 1996.