Heya Wojo, hmmm, anything worth seeing in 29 Palms - let me get back to you on that.
We do have the Joshua Tree National Park if you like desert scenery/scrambling over boulders etc, and March is a good time of year, not too hot, cool in the evenings etc.
If ya fancy a beer or 2, gimme a shout (I'll pm you my number) and once I've got my head out of my butt, I'll pm you some decent info re 29 fella.

Wurzel