萨马纳岛是巴哈马的岛屿，位于大西洋海域，长16.2公里、宽3.5公里，面积45平方公里，有学者认为哥伦布在1492年10月12日踏足该岛，现时岛上无人居住。

• Paleogeographic evaluation furthering the Samana Cay landfall theory

Samana Cay (also known as Atwood Cay) is the largest now uninhabited island in the Bahamas, believed by some researchers to have been the location of Columbus's first landfall in the Americas, on October 12, 1492.

It is an islet, located in the eastern Bahamas, 22 miles (35 km) northeast of Acklins Island. About 10 miles (16 km) long and up to 2 miles (3 km) wide with an area of about 17.37 mi² (45 km²) it is bound by reefs. The verdant cay has long been uninhabited, but figurines, pottery shards, and other artifacts discovered there in the mid-1980s have been ascribed to Lucayan Indians living on the cay about the time of Christopher Columbus’ voyages. In October 1986 the National Geographic Society (U.S.), announcing completion of a five-year study, suggested that Samana Cay was the site of Columbus’ first landfall in the New World.