Lake Prespa

The waters of Great and Small Prespa lie in a high mountain basin east of Lake Ohrid. Some of their water travels through underground limestone channels to feed springs on Ohrid's shore. On an island in Small Prespa, the Bulgarian ruler Samuel established a seat of power in the late 10th century. He brought the relics of Saint Achilleios from Larissa and built a basilica to house them, joining the lake's island to the religious and political history of his realm.