Wonderful Bridges

Two marble rock bridges in the valley of the Erkyupriya River below Golyam Persenk Peak, left behind when the roof of an ancient water cave collapsed. The larger bridge is almost 100 m long and its highest arch is 45 m; the smaller one is 200 m downstream. They are reached by 18 km of paved road from the turn-off at Sinite Hancheta on the road to Plovdiv, and there is a hut next to them.