Neratzia Castle

You leap fully into medieval times now and enter the world of knights on horseback as you head back to Kos harbor (the only longish walk, around 1.2km) and visit Neratzia Castle (or the Castle of the Knights of St John). Built in the 14th and 15th centuries, the castle originally occupied an islet connected to the mainland by a drawbridge (the land was later united with the mainland but the drawbridge remains). You arrive along the aptly named Finikon (Palm tree) Avenue – the main bicycle route of Kos town – and as you enter the castle, you are greeted by two fortifications (internal and external) as well as a circular tower at each of the four corners. Look for the inscriptions of the knights and others in the stonework.