Has anyone done this?  How much is it?  All is says in the shore excursions is that is has to be booked on board no price is listed.

I am interested in this as well. We have quite a bit of time between when we get off the ship to when we need to be at the airport.

My group did the everglade tour in August. The cost was either $48 or $49PP.  I think you have to pay $15pp for the transfer from the boat to the airport.  This was the second time I was on this tour.  First you go out on an airboat ride and then there is a demonstration  and you can even hold an aligator for a small fee ($5 if I remember correctly).  We were very fortunate this last time as we did get up close with an aligator in the water on the air boat ride.  You could have reached out and touch the aligator, it was that close.  The first time, we were not as lucky.  Can't always be lucky.  It was a nice way to spend the time instead of sitting in the airport all day.