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.

Adventure awaits! Join us for a scenic and educational nature hike through San Bernardino County’s beautiful Glen Helen Regional Park. As we explore winding trails, we’ll learn about local wildlife, native plants, and the rich history of the area—all while soaking in the fresh air and connecting with the great outdoors. The best part? We’ll end our journey with a breathtaking sunset view, painting the sky in stunning shades of gold, pink, and purple. Don’t miss this perfect way to unwind, learn, and take in nature’s beauty!
Fee is Park Admission:
Weekday: $10 per vehicle
Weekend: $15 per vehicle