First Saturday of every month, 10 a.m. and Tue., Jan. 25, 10 a.m. Continues through Jan. 28 2011
A park naturalist leads a two-hour, one-mile walk to show how plants and animals adapt to the desert at 10 a.m., Friday, Jan. 21 and 28; and Sunday, Jan. 25. Comfortable shoes suggested. Free. Call for more information.