Jungle Adventurer (Italian: La montagna di luce, lit. 'The Mountain of Light') is an Italian adventure film. It starred Richard Harrison.

The film is loosely based on Emilio Salgari's 1902 adventure novel La montagna di luce (The Mountain of Light), which narrates a fictitious attempt to steal the priceless Koh-i-Noor diamond, concocted in 19th-century India by the Thuggee and the dacoits. The original Italian title of both the film and the source novel refers to the name of the jewel.

The film was re-released under several alternate titles, one of which, Sandok, was an attempt to capitalize on the popularity of Salgari's fictional pirate Sandokan, even though neither the novel, nor the film had anything to do with Sandokan's character or the settings of his adventures.