Going on the Dream in June for the 4night... it will be our first cruise. We are a group of 4 adults. Do you think we will have regrets if we don't do any excursions? We do plan to get off the ship for a bit in Nassau, just to explore a bit -- but none of the planned excursions really jump out to us, plus the extra $$ is another reason holding us back. Would we enjoy getting off the ship in the morning, stroll around, and then head back to the ship around lunch time? Is there a beach in walking distance? As far an snorkeling goes, do you suggest snorkeling in Nassau or Castaway Cay?? If you rent a float at CC, are you allowed to float with a tropical drink?? I'd love to spend the day just relaxing on the water!