Biddeford Pool, Maine Biddeford Pool is a large tidal pool, located off Saco Bay on the south coast of Maine and is the site of the state’s first recorded permanent settlement (then called Winter Harbor, 1616). Harbor home to many lobstermen, its water level fluctuates from a large navigable body during high tide to mudflats during low tide. Also available in the following sizes: 24"x29" 3…