Driving from AL Ula to Madain Saleh is about half an hour (22km) Travelling through the paved highways and not so many cars passing by, you will tend to speed up confidently..but BEWARE! slow down and be alert coz this Mid Eastern trademark may be crossing your way. So, be carfeul and be vigilant with these camels crossing the highways.
As said in the intro page, the site of Mada'in Saleh and some others in Saudi Arabia are not accessible without permit.
I guess Mada'in Saleh must be the most controlled one and all along our visit of the site, we "enjoy" the presence of minders.
3 minder cars for 2 visitor cars !!! I guess we were the attraction of the day as nobody else was around !