Kampa
From Prague-wiki
The Kampa island on the Vltava river in the Lesser Town is separated from the mainland (west bank of Vltava) by a narrow artificial canal called Čertovka (Devil's Stream), dug to power water mills (three of these mills still exist today). It is a lovely and calm place to spend your leisure time. The name of the stream is rumored to be named after a nasty spirited woman who resided in a nearby home titled the Seven Devils and who also washed her dirty laundry in the stream. Kampa Island was first mentioned in 1169. This island of gardens was designed in the English landscaping style with promenades alongside the Vltava and Čertovka.
Due to the Čertovka Canal, Kampa Island is often referred to as the Venice of Prague, although it does not offer gondola rides. But it does offer beautiful greenery, spectacular views of the Vltava, and is the perfect place for a midday picnic or a romantic nighttime walk. The island also features Kampa Museum, an old mill renovated into a contemporary art gallery where you can see a permanent exhibition of František Kupka and Otto Gutfreund.