What? : This park spread over the deep canyon section of the Stevens creek (running water in the winter), covered with an old forest and the relatively open mountain section of Black Mountain. It has several dirt roads good for walking and mountain biking but most of them include downhill and steep climbs.
Another hike/bike option: You can go down on Canyon trail all the way to the Stevens Creek Canyon road (no car parking is allowed over there)
My thoughts: I really like this park, both for hiking or biking, not so crowded, good for rainy day trip in the forest or summer day climbe to black mountain and enjoying the view.