Well worth the money- only a $5 markup. More fun going with people on the ship.
The boat ride is the best part and they give you info and history. The glass bottom part is okay- we didn't see much of a shipwreck but I would do this one again when I go back,
If you go just for the glass bottom part it was very good- but the ride stood out . I wish it were longer perhaps 2 1/2 hours