Boating, water-skiing and camping are also popular on the many reservoirs along the Stanislaus River. The largest, New Melones Lake, is visited by up to 800,000 people per year and includes a full-service marina providing boat rentals and supplies. The New Spicer Meadow Reservoir (the largest of the Stanislaus' high Sierra lakes) and Beardsley Reservoir both include camping facilities and boat ramps managed by the Forest Service. Donnell Lake is also open to the public, but due to difficult access and rugged terrain, it is much less crowded.