I visited Mauritania in October 2019.  I flew into Nouakchott (very easy to obtain visa on arrival), where I visited the camel market and Port de Peche, the city's fishing port, which houses the largest fleet of traditional wooden fishing boats on the West African coast.  It took us eight hours to drive northeast from Nouakchott, on the Atlantic coast of Mauritania, to Chinguetti in the Sahara, where we arrived just in time to watch the sunset from atop nearby sand dunes over the ancient Berber town.  The next day we drove as far as the road goes in eastern Mauritania to Ouadane’s old town, built in the Middle Ages and now largely in ruins.  I made my arrangements with Hademine at Time for Mauritania.