Walk of 10 km and 290m of elevation gain. Starting from the charming village of Monolithos, you go down for a few kilometres to a small bay of "red" sand enclosed by high cliffs. This wild bay, reachable only on foot, will leave you speechless for its "postcard" Greek beauty. Crystal clear waters and sea breeze are ideal for a short stop before starting the ascent to the castle that stands out in the green valley perched on a rock. Monolithos Castle, built on a 236m high monolith to which it owes its name, was never conquered thanks to its position. Today only some external parts of the fortifications and two chapels from the 15th century remain, as well as the breathtaking view of Akramitis, the island of Halki and the vast blue Aegean. After sunset, the walk takes us back to the village accompanied by dusk.