Mauritania is a country in northwest Africa.Geographically part of the Maghreb, Mauritania borders Algeria, Senegal and Mali, along with the disputed territory of Western Sahara.. Understand []. Mauritania is a land about desert and ocean. It is of course no wonder that the main attractions for most tourists are the desert in Adrar and the Tagant areas (around Atar), and the ocean in Banc d …