It starts from Bansko, just below Katerina Hotel and crosses Demyanitsa Hut up to Yane Sandanski Hut. Starting point of the route is approximately 3 km from the road connecting Bansko with Vihren and Demyanitsa Huts. The route takes about 4-5 hours in one way, but of course, the descent is considerably faster than the climb. At Demjanitsa Hut the tourists can choose new directions, food and accommodation. On the eco-path information boards with 14 themes are situated, which presents geological features of Demyanski Circus and biodiversity’ impact of the region, Yulen Reserve, routes options from Demyanitsa Hut, the past of Pirin’ region and natural sights. Near the Hut and one of the main points on the route, the river accepts some of its biggest tributaries - Karkumska and Yulen, and become a classical high-mountain river, respectful of its blooms water.