http://www.bahamas-travel.org/grand-bahama-island-excursion/
Curis Tours Norwegian?
I'm going on a Norwegian Cruise ship, the gem on Saturday. I've been in two other NCL ships before. The ship will call Nassau 8:00 a.m. to 1:00 a.m. and Grand Bahama Island 8 am-3 pm. If you've gone to these places through NCL, I appreciate that very shore excursions you would recommend. Thank you.
Go to cruisecritic.com and post your question under the NCL board or the Bahamas. There are many people there to answer your question that have been there recently.
Diving In Grand Bahama