At 313 acres, McLaren Park, San Francisco's second largest park, offers a wide range of both active and passive recreational opportunities. These elements range from trails and paths, to six playgrounds, five picnic areas, tennis and basketball courts, an amphitheater, natural areas, a clubhouse, an off-leash dog play area, golf course, reservoir, lake, marsh, baseball diamonds, and other amenities. The park has significant topographic changes, with over 425 feet of elevation change, and sweeping vistas of downtown San Francisco, the East Bay and San Bruno Mountain.