Join us for an evening/night mountain bike ride...

Looking for a way to give back to Nature this...

Take a leisurely ride on beautiful Hall Canyon and...

Join us on this moderate-paced hike over the ridge...

Join us in OC Parks’ Irvine Ranch Open Space for a...

Looking for a way to give back to Nature this...

Please note: Preregistration is required due to...

Join us in OC Parks’ Irvine Ranch Open Space for a...

Come enjoy and learn about the bounty of the local...

Ralph B. Clark Regional Park has a rich history of fossils. Over 10,000 years ago this site contained marshes, grassy meadows and oak woodlands, inhabited by at least 70 forms of life including the ancient mammoth, ground sloth and ring-tailed cat. Paleontologists have discovered remains of prehistoric camel, whale, bison...