Take I-19 South from Tucson for 28 miles. Exit at Canoa Road, Exit 56, south of Green Valley. At the bottom of the off ramp there is a "round-a-bout". Follow the circle around until you are able to exit and go under the freeway. At the stop sign turn right, heading south on the east Frontage Road. Go south for 3.2 miles. Look for the green sign on your left. There is also a large white archway over the driveway.