Alum Rock and the Berryessa Neighborhood provide the best action for thrill seekers. Drop in at California’s largest skate park, Lake Cunningham Regional Skate Park and hike in Alum Rock (California’s oldest municipal park). Everywhere you look you'll see stunning views of the Santa Clara Valley from these East Foothills neighborhoods. Alun Rock's population was 12,042 in 2020.

Mount Hamilton is a mountain in the Diablo Range in Santa Clara County, California. The mountain's peak, at 4,265 feet (1,300 m), overlooks the heavily urbanized Santa Clara Valley and is the site of Lick Observatory, the world's first permanently occupied mountain-top observatory.

The Lick Observatory is an astronomical observatory owned and operated by the University of California. It is on the summit of Mount Hamilton, in the Diablo Range just east of San Jose, California. The first new moon of Jupiter to be identified since the time of Galileo, Amalthea, the planet's fifth moon, was discovered at this observatory in 1892.

Twin Gates Trailhead is located near Mt. Hamilton in California. It serves as an entry point for various hiking and biking trails in the Diablo Range. The trailhead offers panoramic views of the surrounding hills and valleys. The area is known for diverse wildlife, including deer, birds, and sometimes even wild pigs. The region boasts a variety of plant species, including oak woodlands and chaparral.

For more than 130 years, Bay Area residents have enjoyed classic culinary tradition at the Mt. Hamilton Grandview overlooking the exquisite Silicon Valley.