The powerful walls of St John's Monastery (Ágios Ioánis Theólogos) dominate the town's white houses and the island of Pátmos, as well as the surrounding archipelago. The circuit wall was built in the 11C-12C; its massive canted buttresses were added ..

The islet of Traonissi lies at the far end of curving Gríkou Bay. Halfway along is Kalíkastrou Rock, honeycombed with caves which were once occupied by hermits. Cafés, tavernas, hotels and Pétra Beach await you at Gríkou, from where there are boat tr..