Arnulfsfeste

The Arnulfsfeste — also known as Hetzelburg — is the ruin of a medieval hilltop castle in the municipality of Moosburg in Carinthia, a short distance from Klagenfurt am Wörthersee. Listed as a protected heritage monument, it stands as a remnant of Carinthia's dense medieval castle landscape, where elevated positions offered strategic control over valleys and trade routes below. The dual name hints at changing ownership or unresolved local legend, the full history of which remains unclear. Reachable today via a hiking trail, the exposed site offers broad views across the Carinthian lake district — a quiet, off-the-beaten-track destination well removed from the busier Wörthersee tourist circuit.