Weekend getaway to the Diablo Foothills Regional Park

What you see: An extended series of monolithic sandstone structures is the highlight at Castle Rock Regional Recreation Area. As you pass through Pine Canyon and along Pine Creek, you have the option of taking a side trip to Shell Ridge for a panorama of Castle Rock and beyond up the flank of Mount Diablo.
Location: Diablo Foothills is on the outskirts of Walnut Creek at the foot of Mount Diablo and adjoins Castle Rock Recreation Area, Borges Ranch, Shell Ridge and Walnut Creek Open Space.
Now’s the time: As fall arrives, so do the migratory raptors. The towering rock formations provide lookout perches, and the ground squirrels in the region provide food.
Source: Sports