The exhibition, titled Sixteen Legs, opens on Friday and centres around an ancient species of spider that dwell in the deepest caves and date back more than 350 million years.

"The spiders are the star of the show dating back to the start of the dinosaurs - they've survived some mass extinction events and they've got a bizarre sex life," Mr Doran shares with a laugh.

He says the spiders have eight legs like any regular arachnid, but the title is a play on words around the courtship of a male and female spider.

And while they have the normal number of legs, they can span to about the size of a dinner plate, Mr Doran said saying some had been measured around 24 centimetres.

The exhibition stems from a deep dive into caves in Tasmania and features an array of creatures that dwell underground.

"We're talking about the animals that live in Australia's deepest caves - it's an exploration of the ecosystem in the caves," he said.

Two models have been scaled up to a five-metre legspan and will feature predominantly, while the exhibition promises a great experience for the eyes including artwork from previous stops on the tour.

"It's a great visual exploration," Mr Doran said.

"There is a big exhibition of photographs from the caves, but also artworks from all the different places it has toured around Australia."

He said they hope to be able to add similar artworks from the exhibition visit to Mount Isa soon as well.

"It started in Tasmania - that's where the deepest caves are found - so in a sense it hangs on the story of those Tasmanian caves.

"But we're trying to inspire, what's hidden away in your own backyard - it's a great jumping off point."

The exhibition opens Friday and will run through to the end of November.

"The really big driver for the exhibition has been touring through regional Australia - something like this usually ends up in the capital cities, so we're really keen for people to come in and take that opportunity."