A steep, stony stepped path zigzags up from Platanos to reach the hilltop ruins of Pandeli Castle. The castle's oldest, innermost sections date back 1000 years, but the outer ramparts were added by the Knights of St John during the 14th and 15th centuries. Few structures now survive, but the 360-degree views from the walls are breathtaking. You can also drive here, along an exposed road that winds up from Pandeli past the windmills, where you'll find a cafe in summertime.