(147 km long) and the border river Rezovska (112 km long).

Strandzha Nature Park

Strandzha Nature Park, established in 1995 in the Bulgarian part of the massif, is the largest protected area in Bulgaria. In size it is 1161 km2, or about 1% of Bulgaria's total territory.The Igneada Floodplain Forests National Park was established in 2007 at Turkey's