Nassau the port terminal is 1 block away from downtown shopping and a few historical attractions are with in walking distance, but the walk from the ship to the terminal can be a doozy especial if in slip 5. Junkanoo beach is about 10 blocks from the terminal, but I would never step foot on it again. Too much gunk in the water from the marinas and since it's a free beach clean up on the beach is done by the patrons if at all, then add to it the wandering vendors that get in your face. I'ld much rather go to the RC Hilton if walking or take a cab to the Sheraton or Wyndham for their day pass options. My absolute preference for a beach day though is for Blue Lagoon Island, it's a nice 1/2 hour catamaran ride out there and can be booked independently in advance. Atlantis too has other day pass options other than what the ship offers but they are first come first sever in person passes, and since there can be up to 7 ships at Prince George Wharf it can get dicey to if there will be any left.
I take Freeport/Port Lucyaa over Nassau any day. The island is much more relaxed on it's attitude towards tourists since that's not it's only industry. There's not much immediately around the port area, it's part of an industrial port that will only accept 1 passenger ship at a time so it's the port shopping area is quite small. It takes a 20 to 45 minute cab ride to get to the interesting parts of the island. Want a real thrilling adventure try diving Ben's Blue Hole, want a relaxing resort day try the Port Lucaya Resort day pass, want to see dolphins in their natural setting try a snorkel trip through ENEXSO, want to experience less high pressure shopping go to the Marketplace.
Just google "things to do" and "attraction map" for both New Providence/Paradise Island and Grand Bahama island and you'll be surprised at the wealth of things to do or see that are not offered by the cruise line. Just make sure you know that you need to be back on board at least 1/2 hour before the ship's departure time. With Nassau allow extra time to walk through the a narrow aisle & crowded terminal building and possible a long walk to your dock back to your ship. And don't forget to allow for traffic if taking a cab to somewhere. If you do schedule a tour with an outside company make sure they know you are on a cruise, sometimes island time is not the always same as ship's time, this way they can advise you of the best time slot for your cruise.
Vacation Countdown Clock Generator
April 2013 Carnival Splendor
May 2012 Carnival Miracle July 2011 Carnival Glory
October 2010 Carnival Pride September 2010 Carnival Glory
Sept 2012 RCCI Explorer of the Seas Aug 2003 RCCI Sovereign of the Seas
July 1992 Premier Oceanic June 1992 Premier Oceanic May 1990 Premier Atlantic