High cliffs straddle both sides of the river Elbe as it flows through Děčín, a small city in northwest Bohemia. Imperious and unassailable, Děčín castle sits high on one side. The opposite cliff, however, belongs to the adrenaline junkies, who launch their own assaults on the massif. Kitted out with helmets, ropes, and carabiners and straining hard for handholds and footholds, these intrepid climbers come here to conquer the city’s web of via ferrata routes.