Known among anglers as a fishers' paradise, the pristine Sweers Island Resort in the Gulf of Carpentaria has hit the market at $3.95 million.
Its reputation for world-class fishing, resort accommodation and pristine beaches means more than 900 accommodation nights have already been booked by tourists for 2022.
Thomas, better known as Tex, and Lyn Battle have held the perpetual lease, on the land of the Kaiadilt people, for the past 34 years.
While interest in the island is high, the couple say it will take a special type of buyer to seal the deal.
"It's been a hard decision to sell up. We've been here for 34 years but my date of birth has caught up to me and we've realised we have to sell," Mr Battle said.
"We've already said no to a few developer-types, that's definitely not what we want.
"We want someone who is going to love this place as much as we have and who is going to maybe invest in a few upgrades. A chef would be nice, for example."
Along with its own private airstrip, accommodation, fishing charter facilities, liquor licence, mobile and internet, the resort is the only tourist hotspot in the region.
Private Islands Online's Richard Vanhoff said many potential buyers had already shown interest.
"No other land for lease will be made available on any islands within the Gulf of Carpentaria for the use as resort business, so no competition," Mr Vanhoff said.
Mr Battle said it was a "walk in, walk out" sale.
"If someone buys it, they get everything we have here. Cabins, workshops, machinery, everything," he said.
As the couple prepares to depart the island at the end of the year, they say the biggest highlight of managing the getaway has been the people they have encountered over the years.
"We've met everyone from council workers to millionaires. They're all the same when they're here. They come here to enjoy themselves," he said.
"The highlights have simply been visits from nice people or seeing people return year after year and enjoy themselves.
