Today we drive towards Rub Al Khali (Empty Quarter) the biggest sandy desert in the world, on the way, we’ll visit Wadi Dawkah, Wadi Dawkah is located in the Najd area behind the northern slopes of the Dhofar mountain range, 35 km north of Salalah city, and extends north towards the state of Thumrait. It's one of the growth areas of the frankincense trees in the Dhofar Governorate, it's a natural reserve for large frankincense trees and it’s listed with the World Heritage and Culture organization UNESCO.

From Wadi Dawkah we’ll visit Al Shisr (the Lost City) one of the sites of Al Luban (Frankincense) Road, which is part of the World Heritage Sites in the Sultanate of Oman, it’s located in the province of Dhofar the state of Thamrit, the capital of the Badia (Najd Dhofar), it's at the southern end of the desert of the Empty Quarter, evidence suggests that the site has been inhabited since the Stone Age. Exploration and excavation work at Al-Shisr site revealed the existence of an ancient archaeological city (believed to be the city of “Erm” which is mentioned by God in the Holy Quran, the land of the people of Hood who did not create the same in the country as mentioned in the Qur’anic text) Continuous exploration of this important archaeological site, this archaeological site was discovered in 1990 by a group of archaeologists and was included in the World Heritage Organization UNESCO for the most important.

From Al Shisr we drive towards Rub’ Al Khali the largest contiguous sand desert in the world, encompassing most of the southern third of the Arabian Peninsula, the desert covers some 650,000 km2 (250,000 sq. mi) including parts of Saudi Arabia, Oman, the United Arab Emirates, and Yemen, it's part of the larger Arabian desert, Wherever you look, you'll see tall white dunes and crystal stone that have been toned due to erosion.