What sea-dwelling beasts await at the Sea Life Centre in Porto? Eschewing Penguin Island in favour of the ocean for the time being, we find seahorses, sharks, jellyfish and more, a veritable feast (not a literal one) of all the best animals from under the sea, where it certainly is better (down where it is wetter). Tickets are cheaper online, and there are a variety of options for groups and families. You can even sleep with sharks, although we’re not sure how we feel about that.