Otis Reservoir is a 1,085-acre (4 km²) reservoir located primarily in Otis, Massachusetts. Small portions are also in Tolland, MA, and Blandford, MA. The lake is popular for boating, swimming, fishing, water skiing, snowmobiling, camping, and water-related recreation. Fish include lake trout, bass, white perch, yellow perch, catfish, and bluegills.