Great Isaac Cay, Bahamas

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The support buildings are crumbling into ruins.

Great Isaac Cay (26 deg 02’ N, 79 deg 06’ W) is a small Bahamian island located about 20 miles (32 km) NNE of the Bimini Islands. It is accessible only by boat.

The most prominent feature of the island is its lighthouse, which was erected in 1859, and stands about 151 feet (46 m) tall. Some say a full moon brings strange noises to the tiny island. In the late 19th century local lore tells of a ship wreck on the island with one survivor, an infant. The child’s distraught mother, known as the Grey Lady, is said to haunt the island to this very day, wailing in sorrow during the full moon. On August 4, 1969, the station was discovered to have been abandoned by its two keepers, who were never found.[1] Many believers in the Bermuda Triangle claim that the keepers were two more victims lost to its mysterious forces.[2]

Though it might not be a mystery at all, whilst it is true on the 4th of August 1969 locals did find the island to be deserted. When one looks at the hurricane record from 1969, Hurricane Anna [1], the first hurricane of 1969 passed close enough to Great Isaac Island to cause dangerous weather for the tiny rock island. The dates the Hurricane passed the Bahama region were the 1st and 2 August. By the 4th of August, the hurricane was well into the Atlantic Ocean and weather would have been good enough to investigate why the Lighthouse wasn't flashing the day or two after the hurricane.

The grounds are open to the public, although the lighthouse itself has had stairs removed to block access to the interior of that structure. The keepers’ house, cistern, and assorted buildings are crumbling into ruins. The derelict collection of abandoned buildings make Great Isaac Cay a popular destination for boaters.

  • Built in 1852
  • Erected late 1850s
  • 152 feet (46 m) high
  • Painted white
  • Flashing white light, every 15 secs
  • Visible 23 nautical miles (43 km)
  • Government operated
  • Automated and unmanned
  • Charted as Great Isaac Fl 15s 46m 23M

Erected in 1856, the lighthouse is now automated.


  1. ^ Rowlett, Russ. "Lighthouses of the Bahamas". The Lighthouse Directory. University of North Carolina at Chapel Hill. Retrieved 2008-03-14. 
  2. ^ Quasar, Gian. Into the Bermuda Triangle: Pursuing the Truth Behind the World's Greatest Mystery (The McGraw-Hill Companies, 2004), Chapter 3: The Riddle of the Vanished Ships, p.71.

Coordinates: 26°02′N 79°06′W / 26.033°N 79.100°W / 26.033; -79.100