Tropical island underwater scuba diving swimming murder thriller, in which divers and thieves search for a sunken treasure.
Jon Hall
as Dave Courtney
Nan Adams
as Joanne Godfrey
John Farrow
as Edward Stuart Godfrey
Jonathan Haze
as Jack Mautner
Phil Posner
as
Dave 'Howdy' Peters
as Fermin Fry
Tookie Evans
as Raul Estoril
Martin Denny
as Marty
Bob LaVarre
as Cal Priest
Bill Anderson
as Mike
Abraham Kaluna
as Abe
