Visit the Monarch Grove at Natural Bridges State Beach for a self-guided family outing during November. Walk the accessible boardwalk to look for overwintering butterflies in the eucalyptus trees. Numbers vary with migration and weather; bring binoculars and observe quietly without touching the butterflies.
Hours: The park is open daily from 8am to sunset; the visitor center is open 11am–4pm. Viewing is free; vehicle parking is $10. Natural Bridges State Beach, 2531 West Cliff Drive, Santa Cruz.