10. La Honda Creek trails.
Reserve a free permit from the MROSD to gain access to this preserve's ancient trees and unique geological formations.
WHERE: La Honda Creek O.S.P., off Bear Gulch and Allen Roads, 1 3/4 miles west of State 35.
DISTANCE: 3 miles.
DIFFICULTY: Easy.

11. Spring Ridge Trail and Hamms Gulch Trail.
Stroll downhill along a grassy ridge to Portola Valley, and loop back uphill through a dense oak and madrone forest.
WHERE: Windy Hill O.S.P., east side State 35, 2 miles south of State 84 and 5 1/4 miles north of Page Mill Rd. (gate WH01).
DISTANCE: 6 miles.
DIFFICULTY: Moderate.

12. Anniversary Trail.
From the grassy summit of Windy Hill, admire a 360° panorama of the peninsula, San Francisco Bay, and the Pacific.
WHERE: Windy Hill O.S.P., east side State 35, 2 1/4 miles south of State 84 and 5 miles north of Page Mill Rd.
DISTANCE: 3/4 mile.
DIFFICULTY: Easy.

13. Lost Trail, Razorback Ridge Trail, Eagle Trail, and Hamms Gulch Trail.
Switchback downhill through a massive fir forest to Corte Madera Creek, follow Eagle Trail along Alpine Road, then head uphill on Hamms Gulch Trail.
WHERE: Windy Hill O.S.P., east side State 35, 2 1/4 miles south of State 84 and 5 miles north of Page Mill Rd.
DISTANCE: 7 3/4 miles.
DIFFICULTY: Moderate.