Tilden-Quarry loop

Lake Anza is a recreational swimming reservoir in Tilden Regional Park, which is located in the Berkeley Hills above Berkeley, California.The lake was created by the construction of the C L Tilden Park Dam in 1938. It was named by the East Bay Regional Park Board in honor of Spanish explorer Juan Bautista de Anza.

Tilden Regional Park, also known as Tilden Park or Tilden , is a 2,079-acre (841 ha) regional park in the East Bay, part of the San Francisco Bay Area in California. It is between the Berkeley Hills and San Pablo Ridge. Its main entrance is near Kensington, Berkeley, and Richmond. The park is contiguous with Wildcat Canyon Regional Park.

The Regional Parks Botanic Garden is a 10-acre (4 hectare) botanical garden located in Tilden Regional Park in the Berkeley Hills, east of Berkeley, California, in the United States. It showcases California native plants, and is open to the public in daylight hours every day of the year except New Year's Day, Thanksgiving, and Christmas.