The park is open daily from sunrise to midnight throughout the year. Overnight camping is available by permit only.

Visitor Center hours are as follows:

Bear Valley Visitor Center
The Bear Valley Visitor Center is open on:
Weekdays from 9:00 a.m. to 5:00 p.m.
Weekends and holidays from 8:00 a.m. to 5:00 p.m.
Extended summer hours:
From July 10 through September 5, 2009, the Bear Valley Visitor Center was open until 6:00 p.m on Fridays and Saturdays. Dates for extended summer hours for 2010 have yet to be determined.

Lighthouse Visitor Center
The Lighthouse Visitor Center is open:
Thursday through Monday, 10:00 a.m. to 4:30 p.m.

The Lighthouse stairs, the exhibits in the lower Lighthouse chamber, and the Equipment Building are open (weather permitting):
Thursday through Monday, 10:00 a.m. to 4:30 p.m.

The Lens Room (the main chamber of the Lighthouse, which contains the Fresnel lens and clockwork mechanism) is open (as weather & staffing permit):
Thursday through Monday, 2:30 p.m. to 4:00 p.m.

All Lighthouse facilities are closed Tuesdays and Wednesdays.

Kenneth C. Patrick Visitor Center
The Kenneth C. Patrick Visitor Center is open on:
Weekends and holidays, 10:00 a.m. to 5:00 p.m.
Closed Mondays through Fridays.
Extended Summer Hours:
From June 1, 2009 to September 8, 2009, the Kenneth C. Patrick Visitor Center was open:
Friday through Tuesday, 10:00 a.m. to 5:00 p.m.
Closed Wednesdays and Thursdays
Dates for extended summer hours for 2010 have yet to be determined.

All Visitor Centers are open throughout the year, but are closed December 25. Visitor Centers may close at 2 p.m. on Thanksgiving and Christmas Eve. Call 415-464-5100 for hours of operation on these holidays.