Perched dramatically in the centre of the Krka River and reached via a wooden bridge, Otočec Castle, 1.5km east of Otočec village, is well worth a visit, even if you're not staying at the hotel here. With late Gothic and Renaissance influences, the castle consists of two wings and an entrance block connected by a pentagonal wall. There are four squat, rounded towers with very thick walls, narrow windows and conical roofs at each end. Admire it all from the courtyard terrace cafe.