RESERVATION SITE: We are currently experiencing glitches after launching the new system. If you are experiencing difficulties making a reservation or see missing campsite/shelter photos, we are working to resolve these issues as soon as possible. Thank you for your patience. The new website is address is www.parkreservations.sbcounty.gov.
CUCAMONGA-GUASTI: The direct park phone line is out of service. Please call our main office at 909-387-2757. We apologize for any inconvenience.
MOJAVE RIVER FORKS: Due to an ongoing pavement project on State Route 173, there may be traffic delays leading to the park entrance.
PRADO: Day watering is scheduled by the Peacock, Red Tail Hawk, Blue Heron, Osprey and Mallard picnic shelters.
SANTA ANA RIVER TRAIL: Roadway painting from Waterman Avenue to Orange Street will occur between Feb. 2-4.
Regional Parks is excited to welcome back the one-day trout derby at Prado Regional Park on Saturday, Jan. 10, 2026, from 7:30 a.m. to 1 p.m. Gates open at 6:30 a.m. and pre-paid derby fees are encouraged. Derby fees are $20 per person and $15 per vehicle. A fishing license is required...