Raintree's Desert Arroyo Phoenix is surrounded by unspoiled panoramas with a stunning variety of wildlife, and yet it is just minutes from downtown Phoenix. he resort sits at the base of the South Mountain Preserve, which is the world's largest municipal park and offers visitors access to 17,000 acres of desert. Beautifully detailed and expertly crafted to reflect the native spirit and the natural beauty of its surroundings, the Raintree's Desert Arroyo Phoenix offers an ideal setting for total relaxation.