Lighthouse Field State Beach sits on the headland that forms the northern edge of Monterey Bay. California State Parks calls it one of the last open headlands in any urban area of the state. Surfers, tourists and birds, including the rare black swift, all come here, and sea lions crowd the offshore rocks. Wikipedia says the 38-acre site was set aside in 1978, has walking trails, picnic areas, restrooms and outdoor showers, and is free year-round.
Steamer Lane and the surfing museum
The headland overlooks Steamer Lane, a surf break known around the world. At Lighthouse Point, also called Point Santa Cruz, the Santa Cruz Surfing Museum occupies the Mark Abbott Memorial Lighthouse on West Cliff Drive. State Parks calls it California's first surfing museum. Its photos, surfboards and other items trace more than 100 years of surfing in Santa Cruz. Wikipedia says the lighthouse dates to 1967.
Monarchs
Lighthouse Field is one of several central coast state parks where monarch butterflies spend the winter. State Parks says the monarchs here typically come from west of the Rocky Mountains, while those east of the Rockies winter in central Mexico. Wikipedia also notes a rock arch at the beach's northern end.
Dogs
Leashed dogs are allowed on the grass next to the lighthouse and across the street along West Cliff Drive. Leashes can be no longer than 6 feet, and dogs can't be left unattended.
Christmas tradition
Each Christmas, the City of Santa Cruz holds "Caroling Under the Stars" next to the lighthouse, a tradition that draws hundreds of locals and visitors.
More monarchs: our Natural Bridges viewing guide.