For over 70 years, Walden West has provided hands-on, outdoor school experiences in the environmental sciences for the children of Santa Clara County. Walden West's main facility, in the Saratoga hills, and a second location in the Cupertino hills use the outdoors to teach science concepts while introducing students to natural environments. Annually, Walden West serves over 12,000 students during the school year and 2,000 more during the summer.