This is central California, Woodward Park and river area.
Its a really cool park, they have the BMX race track, pump track and dirt jumps, seems like a nice place to picnic, and they have a cool disc golf course too. Last time I was there we also had time to check out a Grizzlies game.^^^ Yes. State high school cross-country (running) championships are there. Only thing I've ever heard it known for (or reason I've visited for) before this video.