In Freeport, It is a $5pp shared ride to Our Lucaya with shopping, beach, restaurants, casino, etc. For a little more you can get a day pass (chair, pools, etc) at one of the resorts.
There is some shopping, food, and at least one bar at the port itself.
Here are some pictures from Feb, 2010
Carnival Sensation, Feb 15, 2010, Freeport, p2
Carnival Sensation, Feb 15, 2010, Freeport, p3