Spangled between the depths of the North Atlantic and Florida's eastern coast, the Bahamas – not technically part of the Caribbean – comprises more than 700 stunning subtropical islands and 2400 cays, most uninhabited, and all fringed by spectacular coral and fathomless ocean trenches. From the grit and bustle of funky Nassau to the vast mangroves of Andros, there's an astonishing array of beaches, reefs, forests and historic towns to be discovered, all within the compass of an hour's flight.