Mar brava

Name: Mar brava
Director: Angelino Fons
Released: 1983-08-16
Rating: 6.3
Cast: Alfredo Mayo, Jorge Sanz, Alma Muriel, Guillermo Antón, Mireia Ros

Mingo, a kid whose father and brother have disappeared in shipwrecks, finds an amnesic man lying on the beach. Might he be St. Elmo?