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. Arly - This article is about a river in France. For the national park in Africa see Arli National ParkArly is a 35 km long river in the departments of Savoie and Haute-Savoie France. It is a tributary of the Isere River which it joins at Albertville.
A:
Natural Place