What are the best cruise excursions on RC Majesty of the Seas 3-night Bahamas cruise?

First Time Cruise asked:

I am going on the Royal Caribbean 3-night Bahamas cruise, which sails to Cococay and Nassau. I am traveling with my mom, and this is our first cruise. What are the best cruise excursions in Cococay and Nassau? I am having a difficult time deciding.

Thank you!