To get to tiny Sombrero Island, you must travel 34 miles from Anguilla by sea, dart across the bow of your boat and climb a steel ladder anchored to a limestone cliff. Then, as you regain your bearings and stroll across a barren moonscape plundered by a seabird guano mining operation, the wildlife welcome party makes itself known.
Submerged over 700 meters (2300 feet) underwater, the submerged Cuban city is thought to have been built originally built at a higher altitude and subsequently sunk to its present depth through tecton