Olympi cave is 35 km away from Chios town and 5 km away from Olympi village. It is located 100 meters above sea level and its maximum depth is 55 meters. Although it ss small, it is one of the most beautiful caves in Greece because of the formation of the stalactites. According to archaeologists, the stalactites at Olympi Cave started forming about 150 million years ago and are growing until today!