The Cave of Agia Sophia is located a few kilometers outside Mylopotamos. The legend says that the body of St. Sophia was found there, and for this reason murals dating from the 13th century decorate the entrance of the cave, including a chapel that was later built in her honor. The tour guides, at your service daily, will take you on a tour about the rest of the 2,000 square meter area, which is covered with astounding geological formations.