“Sopot” dam is located in the village of Golyama Zhelyazna, 4 km. from the village of Lesidren and about 30 km. northwest of Troyan. It is the fourth largest in Bulgaria (length 7 km, width 2 km, depth 28 m). Its main tributary is the Kalnik River. The dam is a great place for relaxation, beach and water sports. Also, there are excellent camping facilities. Nearby is the cave "Toplya",…