The Nisa river (also CZ: Lužická Nisa; EN: Lusatian Neisse) is the river in central Europe, which flows through the Czech Republic and forms the border between Poland and Germany.
Is a left tributary of the Oder (
visit link) . Has a total length of 252 km (including 54 km in Bohemia). The basin has an area of 4297 square kilometers.
P.S.
If you're lucky, when you visit this place you can to awaits surprise... not only water is here :-)