This over-the-top send-up of 1960s musical beach movies features a group of teenagers seeking the legendary Fountain of Youth on an island off Florida owned by a cosmetics magnate, who sends his daughter (Jayne Mansfield) to thwart their plans. Throw in some mermaids, spies, double-crosses and groovy music from The Wild Ones, and you've got a recipe for an unrelentingly campy good time. Phyllis Diller, Brian Donlevy and Jack E. Leonard co-star.

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