Unless you hire a car, it's near-impossible to explore the Omani coast south of Muscat alone in a day. This private tour lays everything on, with air-conditioned transport and a personal guide to ensure you cover and hear about the sights. Visit the turquoise Bimah Sinkhole, ancient ruins and villages, and opt to trek and swim in the pools of Wadi Shab, a river gorge lined with palms and waterfalls.