The river originates in the central parts of Stara Planina north of Kalofer, initially flowing east and then making a sharp turn to the south before Yambol, in which direction it flows until it reaches the Maritsa. The Tundzha's length is about 365 km, of which 328 km is on Bulgarian territory (including border). It has about 50 tributaries, the more important of which are Mochuritsa, Popovska, and Sinapovska.
Tundzha River - between city stadium and city park
Tundzha River in Yambol, Bulgaria - The Bridge that connects former Mineral Public Bath and Hotel Tundzha with the City ParkTundzha River in Yambol, Bulgaria - near the City Stadium and the City Park