There was no problem to enjoy wildlife from the ship and at night we shone a light into the water which did a good job of attracting critters. During our stay I saw a penguin (! first wild one I've seen), sharks, seals, pelicans and sea turtles. I went swimming one day and did a bit of snorkeling but there wasn't much to look at (maybe due to waves?).
So I have been to the Galapagos and seen some wildlife but there is definitely more to explore if I ever go back!