Day two of our camel trek in the Sahara Desert was sunny, casting strong, crisp shadows on the sand. Day one was another story. We had set out late from the small Arab/Berber town of Merzouga for a two hour camelback excursion to a Berber tent camp which sat about 40 km from the Algerian border. Dark clouds quickly moved toward us as the sun set. First came a sandstorm that sting our faces and other exposed skin. Our guide instructed us to put the cameras away and cover our faces with our turbans. We were sitting about ten feet in the air above our humped beasts of burden when the rain, thunder and lightning started. The mix of terror and awe made for an intense passage into the worlds largest sand desert.