Have dinner at Al-Mourjan, the only restaurant on the Corniche, located right under the gigantic Oryx statue. You can eat inside, but it would be a shame if you do, for the real treat of Al-Mourjan is the outdoor eating area placed out into the water. At high tide, the steps leading to the tables are covered in water, giving its visitors the illusion on floating while they eat.
The place is expensive, exclusive, it exudes Arabian glamour, the food is scrumptious, the service is speedy and friendly, and the view of the ocean and beyond is out of this world.
If you only have one day in Doha, this is the place to watch the sunset while feasting on Al Mourjan's Arabian cuisine.