The Jenolan Caves near the Blue Mountains west of Sydney is about to become possibly the first tourist attraction in the world to launch tours in the fictional Star Trek language of Klingon.

The link between the world's oldest dated limestone cave system and the fictional Star Trek language is through a spaceship, the USS Jenolan, which featured in an episode of the Next Generation series.

Earlier this month two Klingon scholars from the United States flew to Australia to tour the caves and finalise the translation of a self-guided tour.

They have recorded it at a Sydney studio and the commentary will be available late next month on a digital audio device.

Jenolan Caves tours will also be available in 10 other more commonly-spoken languages.