Graeme
Mega Poster
The Go Karts area does seem to be a perfect location for a clone of Viking Voyage at Emerald Park.
That's the ideal form for a water ride, in my opinion (even though I'm not that keen on them). That and Splash Mountain. A couple of drops and a central structure that could hold a few animatronics - perfect. Personally, I'd cut out the backwards drop and have a very thin splash, but that's just me.