A beautiful way to spend an afternoon, and, if you go on a day when they have the evening illumination of the various cacti, it is an even more remarkable experience. The guided tours are very much worthwhile. We had a beautiful two hour walk through the well thought out paths and a trails in the gardens. This was a perfect way to experience the desert flora close up. The docents shared information in a fun, but educational way. We bought an all-day pass so we could return later to see the evening Electric Desert show. We're so glad we did! The gardens look entirely different with special lighting at night. A musical light show is projected on the mountains with saguaro cactus in the background. And the temperature was cooler!