SEBAGO LAKE (BIG SEBAGO) is an enormous body of water (the 2nd largest in Maine), covering 28,771 acres, with a maximum depth of 316 ft. Its borders extend approximately 8 miles by 10 miles, surrounded by the towns of Casco, Naples, Raymond, Windham, Standish, and Sebago. Big Sebago Lake is accessed by Routes 302, 114 and 37, a distance of 35 miles around. This is an excellent fishing lake, still called "home of the land-locked salmon Because of its size, and the storms that are sometimes stirred up over such a vast body of water, it is not a particularly good lake for small craft like canoes, except in some of its more sheltered coves and harbors. Boat traffic here varies from spot to spot, but can generally be expected to be heavy in the height of the summer season. Long Lake and Brandy Pond are the only other lakes that are boatable to Sebago. The water level on all three lakes is subject to more variation than others - partly because Sebago is the center of a very large aquifer, and partly because the level is controlled. Water level determines the size of beaches. Sebago Lake State Park has several large beaches which are quite busy in summer, a campground for which reservations are required, and 1,300 acres of woodland, hiking and cycling paths.
Sebago Lake is the deepest and second largest lake in the U.S. state of Maine. The lake is 316 feet (96 m) deep at its deepest point, with a mean depth of 101 feet (31 m), covers about 45 square miles (117 km2) in surface area, has a length of 12 miles (19 km) and a shoreline length of 105 miles (169 km).[2] The surface is around 270 feet (82 m) above sea level, so the deep bottom is below the present sea level.[3] It is located in Cumberland County, Maine and bordered by the towns of Casco, Naples, Raymond, Sebago, Standish and Windham. The seasonally occupied town of Frye Island is on an island in the lake.[4]