You can take a guided Edible and Medicinal Desert Plants Walk at Boyce Thompson Arboretum. The walk is a one-hour, slow-paced tour of the Curandero Trail. The Curandero Trail does have steep areas that are not easily navigable for anyone using a wheelchair or walker. The walk is held on Apr. 13th & 28th. The walk begins at 1:30 pm. Admission is $15 (free to BTA annual members, and also free if you have an Arizona State Parks pass) for adults & $5 for ages 5-12. Children 4 years of age and younger are free. The cost of admission includes weekend guided nature walks. Boyce Thompson Arboretum is located at 37615 E. Arboretum Way on US Highway 60, west of Superior near Milepost #223.