The only foreign trip decided on a Thursday afternoon: King Fahd Causeway links Khobar straight to Manama. Beyond the weekend-dinner cliché lies 5,000 years of Dilmun history (UNESCO Bahrain Fort), a pearl-trading souq behind Bab Al Bahrain, one of the Gulf's liveliest food scenes, and the Middle East's first F1 circuit. Causeway runs 24/7 on GCC ID; BHD ≈ 10 SAR.