Take a drive down the coast towards Jamaica Beach the scenery is beautiful. Also go on the ferry ride across to Bolivar Island since Ike they have really rebuilt.
Take a tour of the historical homes 10 bucks I believe.
Also they have a hunted pirate house and ghost tours on the strand.
Or just lounge on the beach only thing I hope the waves are not brown instead of blue. If they it's brown only means we have a lot of shallow water that turns the sand with the waves. If you decide to go for a swim in the ocean expect to come out sandy and that will not be a problem if you are staying in a hotel with a pool LOL take a swim to wash off before heading back to your room.
1999 Royal Caribbean, Magesty of the Sea
2008 Carnival, Glory
2010 Carnival, Freedom
2012 Carnival, Triumph
2013 Carnival, Magic - booked
2014 NCL, Sky - booked
2015 will be booked on my 2013 cruise on Magic