If I want to have photos taken there by a professional and also if I can take a horse there will it be permitted? For a 15 birthday

Call their office

I agree with Josh, horse at park is a 50-50 thing. It depends on Cerritos rules and regulations.

Also don't know about a horse eighther but a little tip, you can reserve a picnic area on the island.

Try calling or go into the office and ask about the horse

Nice for pictures but I don't know about the horse