You climb into a shaded 4x4 before sunrise and leave Muscat’s glass and tar behind, the road pinching through the Sumail Gap where the Hajar spine opens and the land sighs into wide sand and palm. The first stop is a roadside viewpoint at Fanjah: dark rock ribs of the Western Hajar slope away while an oasis gathers below. By late morning you’re at Wadi Bani Khalid—emerald pools cupped by sheer limestone, water so cool it seems to push back summer heat. After a swim, date plantations and a village road lead you deeper into Sharqiyah Sands where dunes rise like slow-moving waves; an experienced driver sketches arcs in the sand as you ride crest to crest and pause for photos at the highest ridge.