Open year round, dawn to dusk. Boat ramps provide public access to Lynn Harbor. Public swimming at Long Beach and King's Beach. Fee for parking at Long Beach, 8:00am - 6:00pm, May - Sept. An expansive seascape can be viewed from over four miles of waterfront that is managed under public ownership. A promenade extends along the two-mile length of the two reservations at the edge of Nahant Bay and is available year round for activities such as walking, jogging and bicycling. Vast areas of hard-packed sand are exposed at low tide which can be accessed at King's Beach and Long Beach on Nahant Bay as well as near the boat launching area on Lynn Harbor. Other interesting natural features include a mile-long system of fragile sand dunes parallel to Long Beach, and tide pools at Red Rock Park that are often filled with colorful marine plants and animals.