DrinaDrina a river in eastern Bosnia and Herzegovina, which in its lower course forms a natural border between Bosnia and Herzegovina and Serbia. It is formed by merging of the Montenegrin Rivers Tara and Piva in Šćepan Polje. Its length of about 346 kilometers passes through many places in Bosnia and Herzegovina. Surrounding mountain Tara, the Drina River made a magnificent canyon that reaches a depth of 1,000 meters and is considered one of the most beautiful canyons in the world. The Drina River in its particular parts is extremely attractive for rafting and other water sports.