Re: traditional navigators
In Nassau and the islands south you see Haitian's working their sailing cargo boats up and down the chain. Some do not even have a compass.
Fruit and veg going North almost anything vaguely useable going south. Broken freezers bent bikes etc.
About 550 miles of fairly challenging navigation with reefs and bars and many islands which the guide books say to identify with a conspicuous stand of casuarina trees and a red roofed house.