2 and under are free 54 inches and under is 19.95 for the day pass and 13.95 for the 4pm to 8pm pass. They dont do water park only anymore. It is all one price for the full park.
It depends on whether you want water park only tickets, all day passes or twilight passes, your child's height, etc. See rates here: https://fun-plex.com/planavisit/tickets/
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