Tilden Regional Park is a popular regional East Bay park located on Grizzly Peak Boulevard. Made up of more than 2,000 acres, it was named after Charles Lee Tilden, the businessman who bought most of the land in order to preserve the wilderness area for the public to use and enjoy. The park is unusual in that it contains high peaks, deep valleys, and thick forests so close to the city and offers stunning views of San Francisco and the San Francisco Bay.

Cyclists, hikers, horseback riders, and runners are all welcome to use the various trails. Other features of the park include Anza Lake, a golf course, a miniature steam railway, and much more.