 This Bay Area Ridge Trail ultimately circumnavigates the entire Bay Area at a length of .The Sanborn and San Andreas trails ascend the eastern mountain slope, eventually joining the Cactus to Clouds Trail (AKA Skyline Trail) and Skyline Boulevard.Summit Rock, which is an established rock-climbing venue offers a panoramic outlook over Saratoga and the South Bay, lies at the upper limit of the park, but is readily reached from the Skyline Boulevard side.