Hi there! we have three in the San Jose/Sunnyvale area. Bug loves them - not for the other dogs but for wide selection of tennis balls and all those two leggers to throw them!
I have also discovered a leash free beach away from the crowds. Bug just loves to swim! she'll keep swimming til her lips turn blue - i never would have believed a brown dog could turn blue....and shivering - just like a kid a t the beach - except she doesn't build sand castles.
www.dogpark.com is a very informative site. Along with a lot of other good stuff they have a list of dog parks and where they are!

bugmom