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.

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:

First place: $1,000

Second place: $500

Third place: $250

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.

A food truck will be onsite to purchase food.

DERBY FEES

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.

DERBY STOCKING

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.

LAKES CLOSED TO PUBLIC FISHING

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.

To prepay, derby forms or more info, scan the QR code or visit