It's Tarzan up to one of his tricks. OK! The mermaids of the title here are actually pearl divers who require Tarzan's help to topple their evil leader. Oh and said evil leader has set himself up as a false God, thus enslaving the islanders with religious fervour. Filmed at Churubusco Studios in Mexico, Mermaids is the final appearance of Johnny Weissmuller as Tarzan. It's no great send off ver mais...