Very pricey for what you get. A couple of hours on a replica pirate boat. One stop for a bit of swimming and back again. Obviously you can't guarantee anything as far as nature is concerned, but apparently they do see whales and dolphins sometimes. We didn't. You go out to the huge cliffs (can't remember what they call them) which were impressive, past Camara dos lobos and back again. When you get on they take a photo of you with a parrot. When you get off one of them gives you the photo, and at the end of the boardwalk someone else is waiting for the money.
All very mundane and expensive.