Windy Hill Loop via Hamms Gulch Trail
This is a moderate 7.5 mile loop trail to Windy Hill in Windy Hill Open Space Preserve, going up 3 miles mostly in the sun, coming down mostly in the shade. Dogs are allowed on leash.
This trail goes by Sausal Pond.
This trail can be cold and wet when there is heavy fog, so be aware of the weather.
Park in Windy Hills Parking Lot in 550 Portola Rd in Portola Valley. Start by taking Betsy Crowder Trail behind the bathrooms.
then head up on Spring Ridge Trail. Anniversary Trail, which has a short spur up to the summit, will connect you to Lost Trail. That will take you across until you get to Hamm's Gulch Trail to descend. You will end up back on Sprint Ridge Trail along Corte Madera Creek, but this time you want to head toward the parking lot on Portola Road and Sausal Pond instead of going back up on Spring Ridge Trail.
There is a bathroom also at the parking lot on Skyline Blvd close by Windy Hill summit off of the Lost Trail, as well as restrooms at the Portola Rd parking area. There is no water, so bring plenty, especially on hot days.
You will want to start early, especially on weekends and holidays, as this is a very popular hike and the parking areas fill up fast. There is no shade on the Spring Ridge Trail, so wear sun protection. During hotter days, many people prefer to do this hike in reverse order, beginning with Hamm’s Gulch, so you are climbing in the shade instead of the sun.
5: Good for older children that can walk 7-8 miles with moderate uphills.