Currently occupied only by a small military squad, the Swan Islands are located approximately 90 miles off the coast of Honduras.
They were used by the USA during the Cuban Missile Crisis as a radio hub to send propaganda to Cuba.
The islands are said to be among the most beautiful in the world and there are plans for turning them into tax-free retirement resort islands. However, this could have a negative impact on the mystery cow. The soldiers that occupy the larger island used to have a herd of cattle that eventually died out but there are signs that one cow and its calf still remain on the island. If you walk to the opposite side of the island from the base you can see fresh tracks every morning but nobody has ever had a clear sighting of the cow.