Two HMs: (1) Count's Splash Castle (which WILL soak you and is great on a hot summer day); (2) their Lazy River, which I always hit multiple times when I was going with the family, just to relax and let the current do all the work.
Even though I literally live within walking distance of this park, I no longer go as my family has more or less outgrown most of the attractions. I still pass by every time I go to the Oxford Valley Mall.