What’s New in the Regional Parks Image Briones Pilot ProjectWe Want to Hear From You Image Del Valle Park Entry Pilot ProjectWeekends and holidays through Labor Day Weekend Image Tilden EEC Replacement ProjectLearn more Image Regional in Nature GuideJuly-August Activities Image Alerts and ClosuresParks/Trails closures, reopenings Image Trails Challenge 2024Explore 20 curated trails! Image Lakeside Laps: Half Marathon, 10k and 5kCalling all runners, walkers and nature enthusiasts! Image Pride MonthCelebrate Pride Month with us. Find & Enjoy Activities in Your Regional Parks Upcoming Events Image Drop-in Program Testing the Water Sunday, Jul. 21, 2024, 9:00 AM Big Break, Oakley Image Drop-in Program Low Tide Exploration Sunday, Jul. 21, 2024, 9:00 AM Crown Beach, Alameda Image Drop-in Program Coffee with the Birds Sunday, Jul. 21, 2024, 9:00 AM Tilden Nature Area, Berkeley Image Drop-in Program Historic Days Sunday, Jul. 21, 2024, 10:00 AM Ardenwood, Fremont Image Registration Required Black Diamond Mining History Tour Sunday, Jul. 21, 2024, 10:00 AM Black Diamond Mines, Antioch Image Drop-in Program We All Scream for Ice Cream Sunday, Jul. 21, 2024, 10:00 AM Sunol, Sunol Visit Our Calendar Ours to Explore, Enjoy, and Protect (Opens in new window) Read More Image Regional Parks FoundationLove your Regional Parks? Become a Member or join the Donor Circle! Read More Image Know Before You GoPlan and prepare ahead for a safe and rewarding time in the Regional Parks. Read More Image Community EngagementWe have fun, informative, and healthful activities for diverse ages, abilities, and cultures. Read More Image Park ProjectsWe're improving the Parks. Learn about park projects and resource management projects. Read More Image Stay SafeLearn how to have a safe and enjoyable experience in the Regional Parks. Resources Image Volunteer (Opens in new window)Image Interactive Map Image Public Meetings Image Jobs Image Plants & Wildlife Image Police Image Fire Department Image Alerts & Closures Image Rules & Regulations Image Regional Parks Foundation News Image Grazing Image Trail Courtesy