7 Reasons to Visit Prague The Vltava River The Vltava is to Prague as the Seine is to Paris or the Thames is to London. On the left bank you'll fi nd the Castle, and on the right bank the Old Town. Connecting them is the famous Charles Bridge. Head down to the river, stroll the bustling riverbank and stop for coff ee in one of many cafés. Feed the swans, see the houses and palaces go by from the deck of a steamship, or, on a hot summer day, rent a rowboat or pedal boat and float over to one of its islands.