Bonifacio, also known as the City of Cliffs is probably France’s best-kept secret, despite being the oldest town in Corsica (founded at around 830 A.D.).A combination of cobblestone alleyways, a sparkling shoreline, and white limestone cliffs make it a rewarding escape.Bonifacio is also known as the “Citadel of Cliffs” or the “Mediterranean’s Sentinel”.It is surprisingly untroubled by summer crowds.Bonifacio and Sardinia were once joined, but were torn apart by volcanic activity. The evidence is the huge shards of granite rock in the turquoise sea.The best way to explore Bonifacio with its almost 3,000 population is from the Mediterranean Sea. The clear blue waters of the Med is a calming treat on…