While driving around the desert area, keep your eyes open for golf carts roaming outside the courses, often on the sidewalk.
Perhaps more prevalent at night, you may spot one coming toward oncoming traffic possibly on the street or sidewalk.
The website below describes a test program which was run. I am not sure of the results but know that whether this is legal any longer or not, it is bound to happen.
The desert vocabulary may be unfamiliar to some. An "arroyo" is a normally dry place that can become a flashflood hazard. If you are hiking along an place the looks like a dry riverbed, and it starts to rain, consider hiking to higher ground. The desert around Palm Desert is unique in its flora. In early spring, there are some very beautiful flowers for a short while. I'm particularly fond of the Palo Verde tree and century plant. There are a variety of other bushes growing in the desert as this region isn't quite as dry as Death Valley, parts of the Arabian Peninsula or Sahara. However, the Choachella Valley Desert is drier than the deserts of Arizona and Northern Mexico, and so doesn't naturally have the stovepipe cacti. Yucca and Joshua trees are also common in this desert. Palms, including the date palm were imported to the valley and thrives very well when irrigated. The source of water for the golf courses and landscaping around town is a huge aquafer deep below the surface of the desert floor. Much more can be learned at the Palm Desert Visitor's Center and other places.
Near the corner of Hwy 111 and El Paseo is a new visitors center. You can buy all the Palm Desert souvenirs you want here, but hospitality information can be very useful here. For instance, while there I overheard instructions for a desert hike that included a stop at an oasis. The center address is 72-567 Highway 111, Palm Desert. Hours are 9-5 daily except major holidays.