At the foothills of Kopaonik, 15 km away from Raška, above the village of Semeteš, there is a Semeteško Lake, which has about 50 m in length and about 7 m in depth. Three streams flow into it, and the water doesn’t flow out from it. The water is blue-green in color and covered with typha and reed. The characteristic of the lake is several floating islands, that is sods, floating on the surface (“green ships“). When the wind blows, the islands are moving, so curious visitors can “ride” on the lake. It is rich in fish, especially carp and babushka. Every year, at St. Ilija, a traditional cultural event “Ilinski Dani“ is held on the Semeteško Lake.