An atmospheric overnight camping tour in the vast desert of Rub al Khali, the “Empty Quarter” Only in the desert: Sighting of Black Camels, meet local Bedouins, and puff on an Arabic water pipe Get a peek at the fabled lost city of Ubar, a sand-swallowed ruin known as Oman’s Atlantis Venture deep into sand dunes and scenic wadis in one of the world’s largest deserts