Visit Wahiba Sands Desert the amazing desert of Oman. You can also visit Bedouin families and get to know their culture while enjoying a cup of homemade Omani Coffee. Desert Trekking is also a popular activity with Camel ride. Wadi Bani Khalid is one of the best-known wadis in the Sultanate of Oman. Wadi is popular for its large pools of emerald green water surrounded by tall palm trees.