The Bahrain-Saudi Arabia Causeway is more than a series of bridges and dams that connected mainland Arabia to the island kingdom of Bahrain. It is a symbol of unity, understanding and cooperation. It also facilitated travel. In fact, the human and car population of Bahrain increases tenfold on weekends because of the huge influx of tourists from mainland Arabia. By the way, GCC nationals are free to travel to any GCC countries (Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, UAE and Yemen).