We took an early-May hike to Rancho San Antonio County Park, which is
basically at the intersection of I-280 and Highway 85 in Cupertino.
Be prepared for big, big crowds on the weekends. Luckily, after the packed
parking lot, the trails fan out into myriad slopes and directions.
We saw lots and lots of wildlife (deer, rabbits, lizards), and nice flora
and fauna. If you live in the area and are looking for a relaxing place for
a short hike or trail run, I recommend RSACP.