Lake Inari Lake Inari Lake Inari (, , , , , ) is the largest lake in Sápmi and the third-largest lake in Finland. It is located in the northern part of Lapland, north of the Arctic Circle. The lake is above sea level and it is regulated at the Kaitakoski power plant in Russia. The freezing period normally extends from November to early June. The best-known islands of the lake are Hautuumaasaari ("Graveyard Island"), which served as a cemetery for ancient Sami people and Ukonkivi ("Ukko's Stone"), a historical sacrifice place of the ancient inhabitants of the area. There are over
Arctic Circle at least once per year (and therefore visible at midnight) and below the horizon for 24 continuous hours at least once per year (and therefore not visible at noon). This is also true in the Antarctic region, south of the equivalent Antarctic Circle. The position of the Arctic Circle is not fixed; as of , it runs north of the Equator. Its latitude depends on the Earth's axial tilt, which fluctuates within a margin of more than 2° over a 41,000-year period, due to tidal forces resulting from the orbit of the Moon. Consequently, the Arctic Circle is currently drifting