Very cool shots!

Jim, I have a question. Did you find that you were tracking over dunes that you later looked and as potential subjects? I mean, was it hard to get to sertatin locations without messing up the sand first? I guess you could make it part of your composition, but did you really have to be smart about your approach? I know when I'm shooting snow scapes, it's a must to pay attention and approach the subject very carefully so as not to track up your forground.