The Star Trek aliens are a humanoid warrior race and have one of the most fully developed fabricated languages. With thousands of speakers worldwide there's a translation of Hamlet into Klingon and even a Klingon Language Institute with registered members, about 2500 of them.
Star Trek started the relationship with the caves, naming one of the starships in Star Trek: The Next Generation the “USS Jenolan.” While looking at new languages for the self guided tours, it was decided to put Klingon down and pay tribute back to the show. They brought in Klingon scholars and announced the tours at an Australian sci-fi convention in 2010.
Nettle Cave is the most visited caves in Australia that is open for casual exploration, where digital self-guided tours lead visitors around the ancient hole in the ground. Nettle Cave offers a variety of interesting sites, including Sooty Owls and stromatolites (structures made of sediment and cyanobacteria). The Jenolan Caves are some of the oldest caves in the world, estimated at 340 million years and have over 40 kM of underground passageways. While some of it is still being explored, there's currently no intelligent life down there.
