Sawyer Camp Trail follows Crystal Springs Reservoir, which is one of the major sources for drinking water of the entire San Francisco Bay Area. It's regarded as one of the best jogging and walking trails in the Bay Area. Along the pristine Crystal Springs Reservoir, there are three segments of trails, San Andreas Segment in the north, Sawyer Camp Trail in the middle, and Crystal Springs trail in the south. Sawyer Camp segment is connected to San Andreas Segment via a walking/jogging trail. Currently no direction connection between Sawyer Camp and Crystal Springs due to the bridge construction.
Yosemite is one of the most popular national parks in the world, and justifiably so. The park is within 4-5 hours of driving from the Bay Area and many awe-inspiring attractions are within walking distance down the valley. It's got something for everyone, whether you are a rock climber, or a hiker, or a camper, or just hanging out with kids and elderly. It's worth repeated visits in different seasons to fully appreciate the changing face of the nature.
Joseph D. Grant County Park is located toward the end end of the Bay Area in San Jose, about 40-minute drive from Palo Alto. We came here in early spring trying to catch some wild flowers. Didn't see much blossom yet but the scenery on the hill was quite a treat. There were not too many people in the park. Nearby the park there are numerous biking routes. Right off the parking lot there is a small lake.