Bear Valley Visitors Center
The center is open 9 a.m.-5 p.m. weekdays and 8 a.m.-5 p.m. weekends and holidays. See this page for extended summer hours.
Click this link for driving directions.
Bear Valley Trailhead is also a major embarkation point -- the heavily traveled Bear Valley Trail goes to Arch Rock, one of the most popular day-hiking locales at Point Reyes.
All the campgrounds are accessible from trails out of Bear Valley, but there are closer trailheads for Sky and Coast campgrounds.