A mostly-deserted island, which is believed to be the home to the fountain of youth, is off the coast of Florida. The island gets some visitors in the form of a teenage boy band, "the Wild Ones", and their gang of swimsuit-clad young people, who head there in a crowded powerboat ostensibly for a scavenger hunt.
Phyllis Diller
as Camille Salamander
Jack E. Leonard
as Irving / Herman Gonjular (Twins)
Brian Donlevy
as George Wellington
Johnny Tillotson
as Dodo Bronk
Jayne Mansfield
as Junior Wellington
Lauree Berger
as Nanette
Jordan Christopher
as Frankie
Lou Nelson
as The Sihk
Toni Lee Shelley
as The Mermaid
Penny Roman
as The Secretary
Adam Keefe
as Special Voice (voice)
Jeanette Taylor
as Treasure Hunter
