Alameda County is a county located in the San Francisco Bay Area of California, USA. It is the seventh most populous county in California, with a population of over 1.6 million people. The county seat is Oakland, which is also the largest city in the county.

Little Yosemite in Sunol is a scenic hike offering breathtaking oak lined canyon views and dramatic waterfalls. It's a short 2 miles upstream from the visitors center and is open 8am to dusk all year long. There are camping options available as well.

The Sunol Water Temple is located in Sunol, California. Designed by Willis Polk, the 59 foot high classical pavilion is made up of twelve concrete Corinthian columns and a concrete ring girder that supports the conical wood and tile roof.

Sunol Paintball Outdoor Park is the Bay Area's top paintball field specializing in beginners, corporate/community events, bachelor parties, birthday parties, and walk on self equipped play.

Bedrock mortars used by Native Americans for pounding acorns that were found in the area are reminders of Sunol's first inhabitants. For the past century, however, the land known today as Sunol Regional Wilderness was used almost exclusively as ranch land.

The Niles Canyon Railway is a heritage railway that operates in Sunol, California, USA. The railway runs through scenic Niles Canyon, which is located between Sunol and the town of Niles in Fremont, California. The railway is operated by the Pacific Locomotive Association, a non-profit organization that is dedicated to the preservation of historic railway equipment.