The Sonoma County Trails Challenge is an invitation to discover your Regional Parks.
Download your 2019 Trails Challenge guidebook.
(PDF: 4.82 MB)
Hike, run, bike or ride at least five featured trails anytime from June through August and get a Trails Challenge T-shirt (while supplies last.)
The guidebook includes park notes, trail descriptions, turn-by-turn directions, maps, and themed hikes. New to this year's Trails Challenge is Tolay Lake Regional Park.
Post a Trails Challenge photo on social media with #SonomaCountyParks#TrailsChallenge to be eligible for giveaways of REI gear and parks memberships.