Although Gordon Scott ranks a close second, Mike Henry was my favorite Tarzan. As in the previous film, "Tarzan and the Valley of Gold," Tarzan is a sophisticated, urbane man who only "goes native" when the job at hand calls for it. He jets to Brazil looking very handsome in his dark grey suit and narrow tie. Soon he uncovers a deadly conspiracy in the jungle and strips down for action.
This movie appears to have a bigger budget than its predecessor and is mercifully free of Van Alexander's cheap dance band score. The cinematography, music and script are all excellent. Sadly, one can actually see the gash and stitches Mike Henry got from "Cheetah" the chimp during filming (look at the scene where he first meets Captain Sam and his ward). It's terrible to think he had unwittingly been infected with a deadly virus from the bite and was about to become gravely ill. By the time he recovered a month later, he vowed the next "Tarzan" film would be his last.
One strange thing about this movie is the poster: it mentions a volcano and Tarzan's death-defying descent through the rapids; however, neither appear in the film (although Tarzan does spend a good time on Captain Sam's riverboat in calm waters). I wonder if these scenes had to be scrapped due to Henry's illness and the time they lost filming before the Brazilian rainy season began?
This is a great film, lots of fun and sort of uplifting, too. You'll like it.