The Comoros is a volcanic archipelago off Africa’s east coast. The island is one of the least visited countries in the world. The largest island, Grande Comore is surrounded by white sand beaches and old lava from active Mt. Karthala volcano. This nation is an underwater marine paradise, with one of the best coral reefs in the world. The islands offer one of the world’s largest coral atolls which parades hundreds of fish species, shells, and corals.