Parked at the end of Alta Vista Rd near the water treatment tanks. Used Alta Vista Trail. Gained 1200’ in about 1.3 miles. Trail is steep with loose gravel on several sections. Highly recommend trekking poles. Amazing views 360. Was able to easily see San Francisco, Marin Headlands, South San Francisco and Oakland to the north and Half Moon Bay to the south. Had the trail all to myself till Middle Peak when I came across one hiker, two mountain bikers and two workmen working on the array of antenna on Middle Peak. Used North Peak Access Road for North Peak which is also decorated with various antenna and other noisy equipment. The true summit for North Peak is behind a fence covered in warnings. Moved on to South Peak. Used a road for power lines loosing some altitude to quickly regain it. South Peak required some bushwhacking.