photo: M. Pencheva

The central position is occupied
by the three rocky bridges, two
of which are in immediate vicinity
to each other. Nature has sculp-
tured a 10 m wide bridge hanging
above a 45 m deep precipice. The
steep valley of the river is covered
with straight candle-like fir- and
pine-trees. The waters of the river
disappear under the ground and
come to the surface again after
3 km. There is a hut next to the
rocky bridges which is accessible
by a road.