Enjoy our visitor information on Moses Lake boat rentals, jet skis, tours, and water sport activities a this lake which is made up of three main arms over 18 miles long and up to one mile wide. It is the largest natural body of fresh water in Grant County and has over 120 miles of shoreline covering 6,500 acres of recreation which can include; wakeboarding, water skiing, tubing, wakesurfing, kneeboarding, wake skating, camping, fishing, and hiking. Location of one of the state's largest natural fresh water lakes, resorts and marinas; plus numerous parks and campgrounds, we're an outdoor adventure oasis! In addition to the natural beauty of the Columbia Basin, Moses Lake has many convenient, quality visitor attractions and facilities.