No, If you have your own gear you don't need
to pay for anything. Myself I would bring the fins.
We always bring all our gear and If you plan to
be in the water for a while fins will help, you will
feel it after awhile if you don't have them. They
will help you from getting too tired.
The water is so clear and the fish come right to
you and there is a lot to search for at CC. Find
The underwater Mickey and the sunken treasure
chest. Lots of fun, We always foget the time and
wind up being out there for 1 - 2 hours easy.
Have a great Cruise.