Hidden Valley Wildlife Area is located along the Santa Ana River, east of Norco on Arlington Avenue, one mile west of La Sierra Avenue. It is set on 1500 scenic acres and has access to 25 miles of hiking and equestrian trails. Within it you can find various live animals, such as a rabbit, snakes, turtles, toads, and different activities for children to enjoy and reconstructed scenes of animals in their natural habitat. Visitors can get away from the noise and lights of the city and enjoy the beautiful views of the river or the bluff overlooking the Santa Ana River bottom.
There are assortments of educational programs offered by appointment. Programs offered include presentations about the Wetlands, Native Americans, Geology and Santa Ana River Watershed. Depending on the program selected, the program may include a hike, hands-on activities, a craft, a game and live animal presentations.