At the foot of Picketpost Mountain in Superior, the Boyce Thompson Arboretum is often called an oasis in the desert: the arid rocky expanse gives way to lush riparian glades home to 3,200 different desert plants and more than 230 bird and 72 terrestrial species. The arboretum offers a living album of the world's desert and semiarid region plants, including exotic species such as Canary Islands date palms and Australian eucalyptus. Trails offer breathtaking scenery in the gardens and the exhibits, especially during the spring wildflower season. A variety of tours are offered year-round. Benches with built-in misters offer relief from the heat. Bring along a picnic and enjoy the beauty.