Call ahead to reserve a campsite at Sesriem Camp.
Renting your own 4x4 and self-driving through Namibia is the best way to experience the country. Namibia has surprisingly good infrastructure given the roads are unpaved. Locals and fellow travelers are generally extremely helpful if you to run into car problems. Also, by driving yourself, you can adjust to your nugget's pace for safaris, naps and frequent stops.
Both excursions are best during sunrise or sunset, for optimal photo opportunities and avoiding the heat.
The best time to travel to Namibia is March–October. The cool air offers clearer skies and ideal photography conditions, and temperatures are milder both day and night. June–August is Namibia's winter and temperatures drop to freezing at night, so plan accordingly.
Play in the largest sandbox in the world, watch wildlife and camp out under the stars in the Sossusvlei region. Experience Namibia with kids at the Namib-Naukluft National Park, the largest conservation area in Africa. The dunes here are the tallest on the planet, in places rising more than 300 meters (almost 1000 feet) above the desert floor. Catch the sunset on top of Dune 45 and then bundle up for a night of camping at Sesriem Camp. Return the following morning for a sunrise hike to the surreal claypan and dead trees of Deadvlei. This experience is perfect for nuggets of any age because the dunes are safe climbs, with options to stay at the bottom and play in the sand. The Sossusvlei dunes and Deadvlei are spectacular any way you experience them.