California’s Great America theme park in Santa Clara, CA, USA - but the comic strip is from “Peanuts” and dates back to 1991 as far as I can tell: www.gocomics.com/peanuts/1991/02/07
The original author / cartoonist, Charles M. Schultz, did the comic himself from 1950 - 2000 with no assistants - so I guess this one is authentic. Maybe if he were alive today he’d be a fan of this community! Or maybe he’s just expressing a child’s point of view.