Answer the following question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Lake Kero - Lake Kero is a medium-sized lake of Finland. It is situated in Kuusamo municipality in Northern Ostrobothnia region and it belongs to the Iijoki main catchment area. The southern part of the lake is called Iso-Kero and northern part is called Keski-Kero.
Answer:
Natural Place