In the Hills - Chino Hills City News and Recreation Guide Summer 2026

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*********EDRWSSEDDM***** Postal Customer Chino Hills, CA 91709 Summer at a Glance Summer Registration Begins – May 5 Rec in the Park – May 9 Aquatics Registration Begins – May 12 Mobile Recreation Summer Hours Begin –June 1 Summer Day Camp Begins – June 1 National Trails Day – June 6 Teen Summer Nights #1 – June 26 Independence Celebration – July 1 Tiny Tots Registration Begins – July 14 Teen Summer Nights #2 – July 24 National Night Out –August 4 Active Adults 50+ Golden Rodeo Dance – August 14 Concerts in the Park Begins – June 10 Movies in the Park Begins– June 11