Knock knock, anyone home?

[shes_unreal]

I am going to be going on a trip to Big Bend this summer! As my previous outdoor experience has been in mostly wooded areas (Eastern woodlands, Texas pine forest, Arkansas bayous), I'm not exactly sure what to take on a desert trip. I know hat, hydration and sun shirt are all important because I used to kayak a good deal but I'm not sure what to wear on my lower half. Should I go for shorts or trousers? Boots or trail shoes?

Anybody been there before who could offer some additional advice?

Thanks!