My brother, a UK national, has a single exit/entry visa to visit me in KSA. When applying for the visa the agent in UK told him recent rulings meant he can ONLY enter KSA by air. So he came via Dammam Airport. For the exit, must he go back by air... or can he go across the causeway to Bahrain to catch a flight back to London? Did anyone experience any problems exiting via causeway lately? Thanks in advance for any help