Something I absolutely recommend is a camel ride during sun set. You should be here, at least half an hour, before sun set. Then you will have to negotiate the price of the ride with a local dealer. The price of the ride is always a mystery, it depends on many factors: demand and supply, your ability negotiating, the patience of the seller, and many other. Most probably you will find someone who paid much less than you, but don't worry about this, I am sure you'll also find someone who spent much more.