FULL PARK CLOSURES: The following parks will be closed on Wed., Nov. 18, Cucamonga-Guasti, Glen Helen, Mojave Narrows, Prado and Yucaipa.
NEW PARK HOURS: Starting Saturday, on Oct.31, park hours will be 7:30 a.m. to 5 p.m. through May 2027.
LAKE ALGAE NOTICES: Both lakes at Cucamonga-Guasti & Glen Helen are under a Caution status. Prado is under a Caution status. Learn more about algal blooms.
MOJAVE NARROWS: Splash pad will be closed after Monday, Sept. 7 through May 2027 for construction of a new splash pad.
SPLASH PADS: Are open at Guasti. Prado splash pad is closed for maintenance until further notice.
YUCAIPA: Be advised that lining up or stopping on Oak Glen Rd. to enter Yucaipa is not permitted prior to 7:30 a.m. ‘No Stopping’ signs are posted along Oak Glen Rd. for safety and traffic impact.
SANTA ANA RIVER TRAIL: Be advised that the road between La Cadena and Riverside Avenue will be narrow due to maintenance until further notice.
GLEN HELEN: The Glen Helen Ribbon Cutting Ceremony scheduled for Saturday, November 14, 2026, at 10:00 a.m. will take place rain or shine.
- This event has passed.
Build Your Own Compost at Guasti
Learn how to recycle organic resources, such as yard trimmings, as well as fruit and vegetable waste into compost for gardens. Join us at Cucamonga-Guasti Regional Park on Saturday, March 1, from 1 pm. to 3 p.m. for a hands-on education activity. All supplies will be provided, while they last.
Instead of putting organic waste into the garbage to be hauled to the landfill, learn to compost. All ages are welcome.
Admission is $10 per vehicle. Make a day out of this educational event and pack a picnic or come and enjoy a day of fishing at our lakes or enjoy the playground and splash pad. Leashed pets are welcome!
Cucamonga-Guasti Regional Park is open daily from 7:30 a.m. to 5 p.m., and is located at 800 N. Archibald Ave., in Ontario next to Top Golf.
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