Opava (Polish: Opawa, German: Oppa) is a river in the north-eastern Czech Republic, a left tributary of the Oder river. It is over 119 km long, with some 25 km forming the border with Poland. For the Second World War frigate class, see River class frigate The Murray River in Australia A river is a large natural waterway. ... The Oder (or Odra) River (German: Oder, Polish/Czech: Odra, Ancient Latin: Viadua, Viadrus, Medieval Latin: Odera, Oddera) is a river in Central Europe (mostly in Poland). ...
Litomerice is a town at the junction of rivers Labe and Ohre in the north part of Czech Republic approximately 72 km northwest of Prague.
The city of Plzen (Plzen) is situated in the Plzen basin on the confluence of four rivers - Mze, Radbuza, Uhlava and Uslava.
The picturesque town of Vimperk, often nicknamed the gateway to the Sumava or the town below Boubin Mountain, is nestled in the Volynka River valley, on the edge of the Boubin primeval forest, at an altitude of 700 metres.