The SF Peninsula Watershed: Fifield-Cahill Trail requires you to sign up for a docent-led trip to complete. This outing is a 16.4-mile out-and-back hike suggested for Bay Area Ridge Trail Circumnavigators. Sign up for the hike and find all information available here: SFPUC Watershed Website
This hike is recommended for experienced hikers. The group will need to be with a watershed docent at all times. For the ‘Gate to Gate’ hike, the group will meet at the Quarry Road Trailhead and will follow the docent to park at Cemetery Gate behind the fenced area to complete the out-and-back hike from Cemetery Gate to Portola Gate and back.