There is a water coaster called "MasterBlaster" that I know of. You're on a small raft and there are water streams that force you to the top of the hills. A ride like that will most likely go in Soak City.
The water coaster Majin is linking us to, will probably go in the park if Cedar Point were to build one.
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-Eric (who hopes Soak City will get a MasterBlaster)
www.TheAmazementPark.com "If everything seems undercontrol, you're not going fast enough!"