Schloss Kalteneck is a historic water castle located on an island near Schwenningen, with views over the Donauried. The property dates back over a thousand years, beginning with the creation of an island on oak piles within a spring basin. Its current form was established in 1570, and it has served various functions, including hosting a castle inn since 1830. The guesthouse offers single and double rooms, each uniquely decorated and equipped with modern comforts such as en suite bathrooms and Wi-Fi. The castle’s old stone vaults and decorated ceilings preserve its historical character while providing a cozy atmosphere. Guests can enjoy breakfast in the vaulted dining room, and the castle’s location makes it suitable for cycling, hiking, and exploring the surrounding region, including the Donauradweg and other scenic routes.