first you have to get your visa from Saudi Embassy through service offices, it is so easy trip, it is 100 Km to Qatari Borders, then 450 KM form Borders to Riyadh, I have been there last April, it was a nice trip, Just take care of Al-Houfouf Area because it is a sandy area and sometimes vision is difficult so you should comply with the limited speed, and don't miss any petrol station because it is long distance between them.
very important note:- avoid driving late evening it is open dessert otherwise you might be attacked by dangerous bandits, I didn't experiences something like that but always read about it in news paper, and have a nice trip
first you have to get your visa from Saudi Embassy through service offices, it is so easy trip, it is 100 Km to Qatari Borders, then 450 KM form Borders to Riyadh, I have been there last April, it was a nice trip, Just take care of Al-Houfouf Area because it is a sandy area and sometimes vision is difficult so you should comply with the limited speed, and don't miss any petrol station because it is long distance between them.
very important note:- avoid driving late evening it is open dessert otherwise you might be attacked by dangerous bandits, I didn't experiences something like that but always read about it in news paper, and have a nice trip