Saint Brendan's Island, also known as Saint Brendan's Isle, is a phantom island or mythical island, supposedly situated in the North Atlantic somewhere west of Northern Africa. It is named after Saint Brendan of Clonfert. He and his followers are said to have discovered it while travelling across the ocean and evangelising its islands. It appeared on numerous maps in Christopher Columbus's time, most notably Martin Behaim's Erdapfel of 1492. It is known as La isla de San B…