The Ghost Galleon (1974)

The Spanish zombie thriller The Ghost Galleon (1974), or Horror of the Zombies as it's also known, follows an up and coming model named Noemi (Barbara Rey) who expresses concern to her boss Lillian (Maria Perschey) that her roommate and fellow model Kathy (Blanca Estrada) has gone missing. Lillian tells Noemi that Kathy accepted a job modeling and working on a cruise ship and offers Noemi the same job. Little does Noemi realize that it's a trap! Sadly the film features no nudity, but Barbara Rey does show off her wonderfully waifish physique in some skimpy bikinis!