Aerial view of the islands, beautiful sandy bottom and green water contours of the Exumas in the Bahamas. Credit: Onne van der Wal/Getty Images Bitter Guana Cay in the Bahamas is home to the rare Exuma Island iguana, a nearly extinct species found nowhere else in the world.Fewer than 5,000 of these prehistoric-looking reptiles remain, and visitors can see them on guided day trips from nearby islands.Beyond its unique wildlife, the uninhabited cay offers white sand beaches, turquoise waters, and excellent snorkeling. You have probably heard of the swimming pigs of the Bahamas. But have you heard about the country’s rare iguanas? The Exuma Island iguana is nearly extinct and roams freely in one of the country’s uninhabited islands. The fascinating, prehistoric-looking creatures can only be found in Bitter Guana Cay in the Exumas, a chain of 365 islands and cays that’s part of the larger nation of the Bahamas.…