Bay Nature’s Summer Guide Is Here


Itching to get outside? Whether you’re looking for an ambitious solo adventure, or you want to introduce kids to the joys of peering at low-tide critters, Bay Nature’s got you covered. Here’s some inspiration to get you started. … Read more


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Peregrine Wander

Saturday, April 29 @ 9:30 am - 1:30 pm


Take wing on a nature hike to view the cliffs and caves of Castle Rock—nesting site of the Peregrine Falcon, the fastest animal on Earth!

In 1950, Peregrine Falcons disappeared from these cliffs, victims of DDT. The birds were reintroduced to Castle Rock in 1989 and have done well, but now face new challenges. Viewing the falcons from the canyon below, Mount Diablo Peregrine team leader Staci Hobbet will describe the fascinating natural history of these apex predators.
You’ll also be on the lookout for spring wildflowers, including the rare and endemic Mount Diablo Globe Lily. Wally De Young will lead you along the historic Stage Road up Pine Canyon and past the enigmatic “China Wall” of Mount Diablo.

This is a moderate hike of about 5 miles with several hundred feet in elevation change. There is an option for an easier 2 mile hike over mostly level terrain.

Please register in advance!


Greenbelt Alliance
(415) 543-6771
View Organizer Website


Your Name (this will not appear on the event listing)
Greta Glasmeyer


Castle Rock Regional Park
1700 Castle Rock Road
Walnut Creek , CA United States
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