Rangers lead free programs within Point Reyes National Seashore year-round. Offerings include wildlife hikes, local history lessons, and habitat-restoration demonstrations. Call the Bear Valley Visitor Center (tel. 415/464-5100) for schedules.

Point Reyes Field Seminars (tel. 415/663-1200; www.ptreyes.org) offers classes year-round, on topics ranging from kayaking to visual arts. Half- and full-day seminars cost about $50 to $150.

Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.