CUCAMONGA-GUASTI: Both lakes are under a Caution status for low algae levels. Learn more about algal blooms.
GLEN HELEN WATERSLIDES & SPLASH PAD NOTICE: The red and yellow slides and splash pad will be 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 will be closed on Monday, July 20 for maintenance.
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.

Join Regional Parks for some double, double, fun and trouble whipping up some of your own Witch’s Brew, Saturday, Oct. 4, from 1:30 p.m. to 3:30 p.m. at Glen Helen.
Watch the cauldron bubble and steam with a magical exothermic reaction — don’t worry, it’s all safe science and super cool to watch! Then, get hands-on and slimy by creating your very own stretchy, squishy witchy slime — perfect for creepy crawling fun. And the best part? We have a potion that glows! Perfect for kids or anyone who loves mixing a little magic with their science! All supplies will be provided while they last. All ages welcome! Leashed pets are welcome too!
Admission is $15 per vehicle.