The Saudis' number-one getaway, no contest: close enough for a weekend, varied enough that every visit feels new. From Dubai's towers and global dining to Abu Dhabi's new cultural weight (Louvre, Qasr Al Watan, Sheikh Zayed Mosque).
GCC citizens enter with national ID; flights from every Saudi airport take under two hours, or drive via Al Batha (~6-7h from Riyadh). Winter (Nov-Mar) is the golden season at 20-28°; summer brings serious hotel deals for an indoor-city trip. Classic split: 3-4 nights Dubai + 1-2 Abu Dhabi, 75 minutes apart.