There's no safari in terms of an expedition into the African jungle per se in Tarzan And The Lost Safari. Rather the king of the jungle has to rescue five survivors of a light airplane crash and lead them out of the jungle to safety. The survivors are a cross section of upper crust Britania including married couple George Coulouris and Yolanda Donlon, newlyweds Peter Arne and Betta St. John who are already having issues and a Cholly Knickerbocker type columnist Wilfred Hyde-White. None of them really at home in the wild.
Besides Gordon Scott as Tarzan this party has another potential rescuer in white hunter Robert Beatty. But he's in league with a nasty savage tribe called the Oprahs, whoops Opars. They've got a fortune in ivory and for some white sacrifices they'll give it up, especially if one of them is the legendary Tarzan. Big medicine for the tribe there.
George Coulouris is strangely muted and not what you normally expect from a guy who plays some high powered villains on the screen. Especially when Donlon gives Tarzan the old come-on. Tarzan evinces not a whiff of an interest. Beatty has his eyes on Betta St. John in the best Snidely Whiplash tradition.
And as always that remarkable simian Cheta responding to some well placed instructions is invaluable in the rescue. And Tarzan's knowledge of native drum language also helps in the climax.
Too much silliness in this plot with a good cast making a really dumb script entertaining.