We've been to the waterpark quite a few times and think it's great fun. The last time we visited was around June 2012 and we booked prior as we was staying in the Splash Landings Hotel that night. If you've got an Merlin annual pass you can get discount off your waterpark tickets, i think it was 20% discount we paid about £12.50 each.
The changing rooms were clean and have lockers in. (Remember to take £1 for a locker though)
The waterpark does get quite busy and there's not really anywhere to sit, seems everyone puts there towels on seats to guarantee a seat. We didn't eat in the waterpark as the snack shop was very expensive and over priced, so decided to get changed and eat in Flambo's. We had a jacket potato which was reasonably priced and was very nice but they are only open for 2 hours at lunchtime 12.30-14.30pm.
Overall the waterpark was great the pools and activities indoor and outdoor. We didn't get to go on the slides as the queue's was very busy and the lazy river is my favorite :) Look forward to visiting again :)
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