Information already in the dedicated Hilton Sharks Bay topic would seem to confirm this http://www.holidaytruths.co.uk/viewtopic.php?f=32&t=72162&p=1332671&hilit=cleo+water+park#p1332671

I had already read that but as someone else put on trip advisor that it's not free, hence my post to find out who is right.
:0)

When we went in 2009, it was free. However, this year, in Feb, it was no longer free. Hope this clarifies the situation!

Incidentally, our rep said they no longer recommended Cleo Park, due to health issues with poor cleanliness in the pools.

Therefore, as we had to pay anyway, we went to the other Aqua Park, which was very good.

Regard to Cleo Park, due to health issues with poor cleanliness in the pools i have been to cleo park i guess 12 times and also the pools are very clean also, the life guards are watching all whats happen in the water park and much more safer then Aqua park its not as safe for the kids