I agree with you OP on "moments in time" stuff. Photos are nice, but be sure to personally experience the surroundings - don't hide behind a camera.

Also - WATER WATER WATER WATER... did I mention water?

Unfortunately hundreds of tourists find themselves in trouble out west by not having enough water. it may not FEEL hot in the shade, even in 120 degree weather, because of the 0% humidity, and you don't sweat, so dehydration comes on sudden and hard.

Other than that, have fun. If you are going with a tour group they should be able to make sure you are all safe and sound.

If you tromp over to Sedona, and like to go off roading (no tour guide), stop at Sedona ATV and Buggy [link to www.atvsedona.com]

great people, good prices for the area, great equipment, and they make sure you have everything you need!

Anyway.. have a blast .. and I repeat - WATER.