8. Wave Pool
If you want our opinion, there surely can't be a much stupider idea than encouraging crowds of untrained idiots into a deep body of water and subsequently subjecting them to increasingly intense waves. The wave pool is the scourge of the water park world, seemingly detested by lifeguard and visitor alike, and has developed a reputation in many parks as one of the areas that produces the most casualties. After all, what could be more unpleasant or dangerous than struggling for air and exhausting yourself whilst some greasy fat kid bobs up and down against you in the aquatic equivalent of a mosh pit? Action Park's Tidal Wave Pool had a notorious reputation, with one fatality in 1982.