Don't want to be a misery (OK, maybe it's a natural trait), and it was some 15 years ago, but Slide & Splash used to be very poorly supervised - i.e. they let people go down the slides too close together.
I ended up with 9 stitches in my head when someone was allowed to immediately follow me down the chute in the deep plunge pool.
Not suggesting you don't go but just make sure that the staff are awake.
Incidentally, shortly before that time they filmed a TV programme there with Judith Chalmers (remember her?). Apparently she was too scared to go down the long slide so she crawled up the tube about 10 feet. The film was speeded up so she was seen emerging from the slide and splashing into the pool as if she's was going at 100mph!