Reinhardt Redwood Regional Park

Trails Challenge

FREE Trails Challenge 2023 Guidebooks and T-Shirts are available, while supplies last, at the following Visitor Centers: Big Break, Black Diamond Mines (Greathouse), Coyote Hills, Crab Cove, Del Valle, Sunol, and Tilden Environmental Education Center. Limit one T-shirt per visitor present.

Del Valle and Sunol remain closed due to flooding, but distribution of Guidebooks and T-Shirts will resume when these Visitor Centers reopen. Del Valle Naturalists may also be at Brushy Peak Regional Preserve with Guidebooks and T-Shirts intermittently - check the Del Valle Facebook page for updates. There is also limited access to Coyote Hills at this time, but the Visitor Center remains open. Please check Alerts & Closures for the latest information.

Guidebooks (no T-Shirts) are also available at EBRPD Headquarters, 2950 Peralta Oaks Court, Oakland, CA 94605, for pickup during regular office hours.

Last updated 1/27/23.

EBRPD 2023 Trails Challenge 30 Years Anniversary

Welcome to Trails Challenge 2023.

Every year more than 10,000 people participate in this FREE self-guided hiking and bicycling program to explore the East Bay regional parks and to keep fit outdoors. The 30th annual Trails Challenge is sponsored by the Regional Parks FoundationKaiser Permanente, and East Bay Regional Park District. 

For the past 30 years, the Park District has promoted healthy recreation and time in nature through its annual Trails Challenge program. The free program connects people to nature through hiking and biking by providing 20 designated trails ranging from easy to challenging. The Trails Challenge is part of the global Healthy Parks Healthy People (HPHP) movement that underscores the connection between a healthy green environment and community health.

The 2023 Guidebook includes 20 detailed trail descriptions available for all levels of fitness, from easy to challenging. There are trails open to hikers, bicyclists, dogs, and equestrians, and Trails Challenge 2023 offers increased accessibility with trails that have been evaluated and identified as usable by persons with mobility limitations (see pages 7-13).

To complete the challenge, hike five of the 20 trails, or 26.2 miles of trails within East Bay Regional Park District. You can submit your log, online or by mail, by December 1, 2023, and receive a commemorative pin, while supplies last.

All 20 featured trails are available on the AllTrails app. First download the free app, sign up and log in. Then go to and click on “Copy to my lists”, followed by "Continue in App". The featured trails will show under 'Lists' in 'Saved'. The app indicates where you are on the trail, enabling easy return to the trail if you stray from it. You can also record your hikes and share your photos and comments with other park users.

All 20 Trails Challenge 2023 trails are also available on the OuterSpatial app. Download the free app, then go to on your smartphone to go directly to the EBRPD 2023 Trails Challenge within the app.

Download: 2023 Trails Challenge Guidebook
Download: Easy Trail Maps | Moderate Trail Maps | Challenging Trail Maps
Download: Trails Challenge Log Form - Keep track of all of your hikes
Submit Online: Trails Challenge Log Form 

EBRPD makes every effort to provide useful and accurate information. The information provided is based on many data sources and represents only the approximate relative locations of features and property boundaries. We cannot guarantee that this information is correct or complete, and cannot take responsibility for conclusions drawn from this information. By using this site/map you agree to the terms of this disclaimer.

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