you do not need it or the
Bahamas.
There is almost always another
boat in
VHF range to help in an
emergency, if not many (I assume you have a built in
VHF and not a handheld). On the off-chance you cannot raise a
boat or land base on VHF you can always use a SPOT or InReach or SatPhone to get help in a REAL
emergency. Heck, you can talk to the US Coast Guard from a large area of the Bahamas over VHF and they regularly patrol there by helicopter and plane (yes - USCG).
Then there are the Bahamians, which are always extremely kind and helpful.
Have you bought the Explorer Chartbooks for the Bahamas? If not, I would do so not only for the
charts but also as a great cruising guide. They write all about
radio procedures, emergencies,
provisioning,
customs and immigration, etc... Anything you wanted to know is in that and a few other Bahamas
cruising guides.
http://www.explorercharts.com/
http://www.amazon.com/Cruising-Guide...cruising+guide