We will be heading back to FL in the next several days from the Abacos, this morning is my last connection to the internet until we arrive, probably no earlier than Saturday. So this is quick and dirty.
The Bahamas have a few caveats regardless of the size of the boat. Do not cross the Gulf Stream if the wind is from the north. Many passes in the Bahamas, especially north passes into the Abacos and most anchorages in the Berry Islands, are impassable or dangerous in a norther OR a "rage sea". Rage seas do not need north winds to form, there just needs to be a northwestern storm on the northeastern seaboard of the US of sufficient strength to set up one of these seas. We rode through a pass into the Abacos at the tail end of a rage sea, it was just barely safe, but a day earlier we would not have been able to get in and we would have had to turn around and go back the way we had come.
Weather patterns must be changing, a rage sea in May is rare, yet there it was!
You must have a good radio. Check NOAA's National Weather Service. For the Abacos and information on crossing between S. Florida and the Bahamas, and general info about the Abacos, http://www.barometerbob.com/
Distances, approximate. Bimini to Berries: 78 nm; Berries to Abacos, 50 to 75 nm minimum, and much further for decent anchorage if you want to go beyond Grand Bahama Island. From Grand Bahama Island to Ft. Lauderdale, 68 nm.
The Abacos have a cruiser's net from 0815 each day, weather the first order of business, on VHF 68.
Fuel is, at minimum, $5.30/gallon.
Each person must have a life jacket. You need very good navigation charts. Eyeball navigation is essential on the banks or you can run high up onto a shoal or a reef. Do not, repeat - do not trust a chart plotter to keep you off shoals or reefs - the accuracy is simply not good enough. The GPS might be accurate within 15 feet, but the charts are not accurate to less than about 45 to 90 feet! You must eyeball the water to see if it's deep enough and there are no coral heads in your path.
Jetski experience has no value whatsoever in navigating a small boat.
Watch the weather and good luck.