Body Join Fourth District Supervisor Doug Chaffee along with OC Animal Care, on Saturday, September 16th, for the Kids Fishing Derby at Ralph B. Clark Regional Park! Registration: Opens at 7:00 a.m. Fishing Derby: 8:00 a.m. - 11:00 a.m. To make a reservation, please click here. Ralph B. Clark Regional Park 8800 Rosecrans Ave., Buena Park, CA 90621 Image Fall 2023 Fishing Derby Flyer_V2 2023-08-18 21_04_55.jpg