Hello gincruz, Well, if you're still reading this, and not in a frenzy of last minute packing, I do have one suggestion for you. If you think your little would like a zoo, take him to the Andrasta Gardens, Zoo and Conservation park. It's not huge, but we really enjoyed it. The flamingos are the hit of the place. They have a web site. Easy to find if you google.
By the way, don't waste your money on the ship excursion to get there. It's a short and cheap cab ride, so just grab a taxi and go straight there. The excursion that the ship offers includes some sight seeing along the way that would likely bore a toddler to tears. Literally.