Sharqiya Sands, also known as Wahiba Sands after the local Bani Wahiba tribe, is roughly 4,000 square miles of sandy dunes in the north-east of our mystery country, about a two-hour drive from the national capital of Muscat. Along with several indigenous Bedouin groups inhabiting this desert, the high moisture content of the sand supports a surprising variety of flora and fauna. Heavy fog regularly rolls in off the sea and is absorbed by the sands.

There are lodges and tent camps in the Sharqiya Sands, but tourism, which has taken off across the country in recent years, may soon be limited to designated areas in order to preserve the unique and sensitive ecosystem. 

Can you name that country? 
See below for answers.

This mystery country is Oman.
Click to see Oman tours.