SWIM SCHEDULE CHANGE: Glen Helen & Yucaipa complexes transitioned back to weekends only through Labor Day weekend. See pool calendar.
LAKE ALGAE NOTICES: Both lakes at Cucamonga-Guasti & Glen Helen are under a Caution status. Learn more about algal blooms.
CALICO GHOST TOWN: The phone line is currently down. If you need assistance, call our main number 909-387-2757.
SPLASH PADS: Are open at Cucamonga-Guasti, Mojave Narrows & Prado.
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.
PRADO: Due to current lake conditions, fishing activities at Prado Regional Park are temporarily suspended until further notice. For the safety of our park visitors and protection of the lake environment, guests are asked to refrain from fishing or entering the lake while the suspension is in effect. Park staff will continue to monitor lake conditions. Fishing will resume once conditions are determined to be appropriate for recreational fishing. We appreciate your patience, understanding, and cooperation. Please check back for updates on our website regarding the reopening of fishing activities.

Regional Parks is excited to welcome back night fishing opportunities for all ages with the catfish derby at Cucamonga-Guasti Regional Park Saturday, Aug. 23, from 6 p.m. to midnight. Check-in and registration begins at 4 p.m. and prepaid derby fees are encouraged online.
A food truck will be onsite to purchase food.
Participants will receive a wristband and packet with derby entry forms and rules. The derby is rain or shine and no refunds will be given.
Both the small and large lakes will be open to derby contestants.
Regional Parks will have a weigh-in station available and encourages participants to allow plenty of time to weigh and enter their fish prior to the 12 a.m. cutoff time.
Derby cash prizes will be awarded for:
Winners do not need to be present to claim their prize(s). Winners will be announced at approximately 12:15 a.m. at the Regional Parks weigh-in station at the snack bar near the large lake.
Fees are $20 per person and $15 per vehicle. A fishing license is required for all participants ages 16 years and older.
Cucamonga-Guasti Regional Park is located at 800 N. Archibald Ave. in Ontario (next to Top Golf). Park summer hours are 7:30 a.m. to 8 p.m. daily.
For the derby, 1,050 lbs. of catfish will be stocked on Friday, Aug. 22. Due to the derby, the lakes will be closed on stocking day.
There will be no public fishing while the lakes are closed for the derby from Friday, Aug. 22 at 7:30 a.m. through Sunday morning, Aug. 24 at 7:30 a.m.