hi just returned from salou and went to aquapolis when we were there and i would say that costa caribe is far better for kids than aquapolis, especially younger ones. aquapolis is more open and not so compact and i saw a couple of people who had a little accident on the slides. it's also a very busy park and the sealions and dolphins show is good. no swimming with them, you could have your photo taken with the sealions at a price, not sure of the price as i didn't stop to find out. hope this helps