Tourists photograph and look at old town of Bonifacio, also called the Citadel, perched on the cliffs. The historic town is a popular tourist destination. Corsica..© Fredrik Naumann / Felix Features Corsica is a French island in the Mediterranean Sea. It is located west of Italy, southeast of the French mainland, and north of the Italian island of Sardinia. Mountains make up two-thirds of the island, forming a single chain. (Wikipedia)