1) Mountain in Poland 
The Radunia (Radaune) is a small river in Kashubia (Pomerelia), which issues from a lake and falls into the Motława (Mottlau) near Gdańsk (Danzig). A part of its water is conveyed into the city via the 13.5 km long Radunia Channel (Kanał Raduni (pl) / Radaunekanal (de)) or New Radaune, a canal built in the 14th century by Teutonic Knights, to p...