Diablo Foothills Regional Park is a 1,060-acre natural haven located just outside Walnut Creek, California. Serving as a gateway to Mount Diablo State Park and the Walnut Creek Open Space, the park features rolling grasslands, oak woodlands, and striking sandstone formations. Pine Creek meanders through Pine Canyon, supporting diverse wildlife such as mule deer, coyotes, bobcats, and various bird species. The park offers panoramic views of the San Francisco Bay Area and is particularly vibrant during the spring wildflower season .

Visitors can enjoy a variety of activities including hiking, horseback riding, and mountain biking across 19 trails that range from easy to challenging. Notable trails like the Stage, Briones to Mt. Diablo, and Fairy Lantern Loop provide scenic routes through the park . Adjacent to the park is the Castle Rock Recreation Area, which offers picnic spots and a seasonal swimming pool. It’s important to note that certain rock formations are closed from February 1 to August 1 to protect nesting peregrine falcons . The park is dog-friendly, with leashed pets welcome on most trails.

Pet-friendly: Yes, on some trails, but must be leashed and well-behaved

Soft adventure: There are some soft adventure trails, but most are more of a moderate adventure

Seasonality: All seasons