Eleuthera is one of several islands that lies within the archipelago in The Bahamas, about 80 km east of the capital city Nassau. It is long – about 180 km – and thin - only about 1.6 km wide in places. The light blue waters of the shallow Caribbean Sea on one side of the island stand out in stark contrast to the deep blue of the Atlantic Ocean thousands of feet in depth. One of the best places to see this extraordinary juxtaposition is at the Glass Window Bridge.

The Glass Window Bridge is about two miles east of Upper Bogue and joins Gregory Town and Lower Bogue at the narrowest point on the island. It is one of the few places on earth where you can compare the rich blue waters of the Atlantic Ocean on one side of the road and the calm turquoise-green waters of the Exuma Sound (Caribbean Sea) on the other side, separated .

For centuries, there was a natural stone bridge connection between north and south Eleuthera. Then in the 1940's, several hurricanes combined to destroy the land bridge and the concrete bridge was built as replacement. For decades, this bridge was kept functional by periodic repairs, but in 1992 and 1999 hurricane caused significant damage to the bridge. After the 1999 Hurricane Floyd, practically nothing of the original Glass Window Bridge remained. Although the bridge was repaired and Queen's Highway re-connected within a few months, the geography of Eleuthera was changed forever. Even after a decade, workers stay busy reinforcing the shoreline in order to re-pave the severely eroded asphalt.