three pictures showing different views of calero county park. oak tree canopy, a view of calero lake, a view of green grass with bald peak in the background

Ridge Trail Dedication: Calero County Park Community Day

Saturday, May 31, 2025. 10am-2pm Location: Calero County Park – San Vicente Parking Area Parking: Free. Equestrian lot available. Amenities: Water, Restrooms. Join us in celebrating the opening of a new Ridge Trail segment! The Ridge

2025 Ridge Trail Challenge

The 2025 Ridge Trail Challenge is on! March 1 – December 31. Every year, we challenge hikers, mountain bikers, equestrians and runners—beginners and experts alike—to get out and explore the Ridge Trail. Take on the

trail with hills and water in the background

Hike the Fifield-Cahill Trail

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. Find more information about