Slow motion of Vltava river dam in city of Prague in Czech Republic

slow motion vltava river prague city water electricity producing making of effect river fluvial dam urban cloudscape scenery riverbank parks trees europe european city view water current city dam city on river spire cathedrals in distance pastel blue sky fresh air water reflection city of 100 spires coast shore street river course water flow traffic prague bridges travel destination tourism sightseeing lovely site rich culture no people raw footage sky reflection in water bohemia czech republic downtown buildings