Pustý Hrádek was built specifically to negate the tactical advantage of an enemy occupying the neighboring higher ground.
The name 'Pustý Hrádek' translates literally to 'Desolate Little Castle'.
It was strategically positioned to prevent the 'enfilade' of Kašperk, which would have exposed the main castle's courtyard to enemy siege weapons.
The structure is connected to the primary Kašperk Castle via a well-marked forest trail that takes approximately 15 minutes to traverse.
The site was never intended for habitation and lacked the complex domestic infrastructure found in the nearby main fortress.
Pustý Hrádek is a 14th-century auxiliary fortification located on a rocky promontory overlooking the main Kašperk Castle complex. It served as a tactical observation post to protect the main castle from long-range artillery attacks, as its elevated position allowed enemies to fire directly into Kašperk's courtyard. The site features the remains of a single stone tower and defensive walls constructed during the reign of Charles IV. Unlike the primary castle, Pustý Hrádek remained a rudimentary military position rather than a residential structure. Today, it stands as an unstaffed ruin accessible to hikers, offering a direct line of sight to the main castle fortifications across the ravine. The site is part of the Šumava National Park region and functions as an open-access viewpoint.
The highest point of the remaining stone walls, framing the main Kašperk Castle in the background.
Bring a pair of binoculars to better visualize the defensive geometry between this site and Kašperk.
Wear sturdy hiking boots, as the path from the main castle to the ruins is rocky and uneven.
Visit during clear weather to maximize visibility of the surrounding Šumava landscape.
Attempting to climb the unstable stone masonry, which poses a safety risk and threatens the preservation of the ruins.
The site is accessible year-round, though paths may become slippery or inaccessible during heavy snow in winter.
