CUCAMONGA-GUASTI: Both lakes are under a Caution status for low algae levels. Learn more about algal blooms.
GLEN HELEN WATERSLIDES: The red and yellow slides are unavailable until further notice. We are offering a 50% discount on swim admission – $10 per person. The Nature Island playground will be closed on July 21-22 for maintenance.
SPLASH PADS: Are open at Cucamonga-Guasti, Mojave Narrows & Prado Regional Parks. NOTE: The splash pad at Guasti is closed for maintenance until further notice.
MOJAVE NARROWS: The ADA-accessible tent campground restrooms are closed until further notice.
PRADO LAKE CLOSURE NOTICE: The lake is closed until further notice due to high algae levels. Learn more about algal blooms.
YUCAIPA ENTRANCE NOTICE: 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.

The catfish derby is a skilled event that runs August 1, 2023 thru August 31, 2023 at Cucamonga-Guasti Regional Park, Glen Helen Regional Park and Mojave Narrows Regional Park. The event is a skilled competition open to the general public and anglers of all ages. Derby entry is $5 and does not include the park entrance and park fishing fees. Gates open at 7:30 a.m. and the derby hours are from 7:30 a.m. to 2 p.m. State and County fishing regulations apply (except second pole stamp). Visit our fishing derby webpage or ask a park staff person for entry forms, rules & regulations and prize details.