In Orlando, there are 4 Disney theme parks as well as Sea World, Universal Studio and Gartor land.Drive 1 hour, you reach Kennedy space center.
From Orlando, drive 3 hours to Miami. The famous Everglades national park is nearby. You can also visit the Italian garden in Miami. Then drive to Keywest, the southmost part of USA.Ralax on beach, go snorkling and visit Hemingway's house.
If you have a re-entry visa to USA, you may take cruise from Miami to the Bahamas.
The whole trip may take about 10-11 days if you do not take cruise.