Struma is the largest river in western Bulgaria. The river flows south, and its end destination is Greece. Its total length is 415 km. The waters are generally clean, creating perfect conditions for the development of spa and eco tourism. River rapids in the Kresna gorge, which is about 24 kilometers from Sandanski, have become an attraction for lovers of extreme sports (rafting). Riverbanks are convenient for picnics and tent camps. The river offers good conditions for fishing as possible to catch are the following species: chub, barbel black, roach, bream, Nase, carp, catfish, pike, perch, bleak and more.