Cruise Ship......4 - 5 days Row Boat......maybe a lifetime.
Coming from Norfolk VA, it's about 500 miles. Which, if you're going by sail boat (which on average goes around 6 mph), you're looking at around 83 hours of sailing. Which, since there is no land...
Apart from tiny fluctuations due to altitude gravity on the surface of the earth is the same everywhere.
It takes you to Bermuda, of course. See the link below.
Please see the links below for actual photos taken in the area of the Bermuda triangle.