Power Inn road park is gigantic and friendly to both pool and street skaters. My personal fave is a little place in Lodi called One-Eighty. The ramps are old and decrepit and they make you wear a helmet, but the staff there are some of the coolest people you will ever meet and it's a really tight, close-knit scene. check out lodi.empire to get to know more. But the absolute best skateboard park in the area, bar-none, is Grass Valley. Look it up online to get directions.