Tarzan and the Mermaids

Tarzan and the Mermaids is a 1948 adventure film based on the Tarzan character created by Edgar Rice Burroughs. Directed by Robert Florey, it was the last of twelve Tarzan movies to star Johnny Weissmuller in the title role. It was also the first Tarzan film since 1939 not to feature the character Boy, adopted son of Tarzan and Jane. Boy was described in the film as being away at school, and the character never returned to the series.

The film was shot in Mexico by RKO during its collaboration with Churubusco Studios at Acapulco, Teotihuacan and Mexico City. It was the first official Tarzan film to be filmed outside the United States since Herman Brixs The New Adventures of Tarzan.The film is noted for its cinematography by Gabriel Figueroa, exotic Mexican scenery and coastal locales, a Dimitri Tiomkin score and much group singing. ........

Source: Wikipedia