http://www.bahamas-travel.org/bahamas-island-ports/
What is the recommended length (ft.) for a sailboat navigating open ocean waters?
For ocean waters of Florida, Bahamas, Jamaica, Dominican Republic, Cuba, Puerto Rico, Virgin Islands and Central and South America.
Home Port would be either Florida or Puerto Rico.
There is no set recommendation. Blue water sailors will tell you that 28 foot is about the smallest they would try an Ocean crossing in . The key Factor is the boats ability to
1. Handle weather
2. Be large enough to carry all the neccesary supplies and
safety equipment
3. be of a size that you are comfortable with
Sailboats as small as 5 ft have crossed the atlanctic.
http://www.svcn.com/archives/sunnyvalesun/20041027/sv-cover.shtml
Bud Light – Port Paradise III 2010 – Big Island