Lagunitas Lake Access is located at the end of Sky Oaks Road in the Mt. Tamalpais Watershed near Fairfax, offering a scenic 1. 6-mile loop trail around the lake with wide, relatively flat fire roads suitable for hikers, cyclists, and families.

The Lake Lagunitas Picnic Area provides parking (with an $8 fee), restrooms, drinking water, picnic tables, and charcoal grills, though an $8 vehicle pass is required at the automated pay station.

No boats or wading are permitted in the lake, and the area is open daily from 7 am to sunset, with creek access seasonally closed December 1st through June 15th to protect spawning fish.