We were actually escorted there by police because when we got off the bus, the sign on the over ramp said no pedestrians and it was right by the police station, so technically there is no way to get there by bus. Best to drive there.
The clerks at the water park were so kind and generous. One of them just happened to be leaving as we were leaving, so she gave us a ride back to the bus stop. The rides were fun and worth it for the trip there. Lots of fun.