http://oceancurrents.rsmas.miami.edu/caribbean/caribbean.htmlImagine your self somewhere in the Caribbean sea when you are caught in a storm and dismasted above the lower spreaders. When the storm clears all hands are healthy, long range radio is out, there is adequate food and water for a few weeks and you are able to jury rig sails. Your motor fuel supply is good for 10 hours. How and where would you plan to make land fall if the storm had blown you west of the island chains? You still have a functional GPS and small scale charts of the region and some harbor charts.Edit to add link:http://www.caribbean-on-line.com/maps/caribbean-map.htmlEdited to add question mark after "chains"