We've always wanted to come back here ever since we came around 10 years ago. It was so great to show Xavi and Amber, as we have talked about it so much. The two-day ticket (available from most hotels for the same price as one day) was well worth it since we got there quite late in the afternoon. We spent till lunchtime there the next day and could have stayed longer - there's so much to see and do - kids loved the otter and penguin feedings and the octopuses in particular and Xavi learned so much about the environment and sustainable seafood.