Hello Jeremy,
it is a boat trip with a chance to get in the water with some species of dolphins,
some species of dolphins are protected, so we can not go in the water with them as we follow the regulations and not disturb them,
the chances are very good to meet the "resident" dolphins ( Spottet and Common dolphins ) and to get in the water with them,
nobody can guarantee what you can find on the trip with wild animals,
frequently we see also turtles and whales,
just contact us on your arrival on Madeira for your arrangements
best regards