Little known to most people there are a bunch of wineries near town. I think about 10 in Gilroy and another 5-6 in the surrounding areas.
While not the standard of Napa, definately not the price, distance or snobbiness. Worth a partial day trip to check them out, especially since they start just 10 minutes up Hecker Pass Road.
In Gilroy, there's a little-known mini-golf park called Hecker Pass. We played a round of mini-golf there and it was fun and somewhat competitive! hehehe. Next year, a theme park called Bonfante Gardens will open to the public.
Map of Gilroy taken from www.gilroyvisitor.org