Part of the fun of cruising on vacation is trying some new things on for size. The Liberty of the Seas has these two fun water slides up top on the bow of the ship. We had some laughs up there with our kids. I recommend trying it out!
There is also a surfing simulator up by the slides, called Flow Rider. We didn’t get the chance to try that out. FYI , it is closed when the ship is in port. We will have to return!