You need to buy a shuttle bus, or it's not too far and very cheap.
Just navigate to the East Gate (New Gate).
I went in and bought camel riding and sand rush car B. I also rented two sandboards.
I am so fat, the camel is hard. The guy led the camel in front for a kilometer. It was also super hard.
Rent a sandboard, take a car into the sand mountain, it's so high inside, to the B line station. You can take pictures, climb the mountain, and play with sand by yourself. I was so tired just pulling the sandboard. It is recommended to buy the park project to play, otherwise you will be exhausted.
It's hot these days, try to come in the evening. I went up the mountain at 19:00 and it was still 43 degrees.