Wequaquet Lake, also known as Chequaquet Lake, Great Pond, or Nine Mile Pond, is a 654-670 acre unstratified warmwater lake located in Barnstable County, Massachusetts, northwest of Hyannis. This windswept lake has good water transparency extending to 10 feet or more, with an average depth of 14 feet and a maximum depth of 33 feet. The bottom is primarily composed of sand, and due to the open nature of the lake, there is little cover and aquatic vegetation is limited. Wequaquet Lake drains south via the Centerville River, which flows into the Atlantic Ocean. The 7.5 miles of shoreline is heavily developed (90%) with cottages and year-round homes.