Lúmbolka — a river at Tersky coast of Kola Peninsula. The name on the ancient Russian mean: the lake on the swamp — the source of the brook. The source is the swamps on the north from Keyvi (257 m above the sea level): the estuary — White Sea. The length is 80 km; the catchment area — 1 040 sq.km. The river has several tributary. Lumbovka is shallow river with a stony bed, from 52th km looking more like a stony stairs, because last 28 km the streams falls from 205 m till the sea level. In the estuary is located the village Lumbovka.