The White Sand dunes are lovely with several nice spots for photos. There is a cafe at the foot of the dunes and a gang of kids renting 4-wheelers. If you decide to take one for a spin, one of the kids will ride on the back with you and act as a pseudo-guide or get your 4-wheeler out of the sand if you get stuck. The 4-wheelers are in bad shape but it is a decent tour and will get you up the hills. As I have been to desolate dunes in the Sahara, it is hard to appreciate these dunes as there are many tourists around. Be warned, the kid will insist on a tip after the ride. The sublely in tipping is completely lost on these kids and when you are getting off the 4-wheeler, they will start chanting "tip, tip, tip." Yes, I got it, you want a tip. If you have the time, the drive out to the dunes is nice and the dunes are worth seeing.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.