The teenagers handed the money to the police after they told their mother and gaining legal advice. Turntable Creek where the boys had been fishing, has been affected by flooding over the past few months and police think the bundle could have come from a number of streams in the area, known as the Northern Rivers region.

A police spokesman said that they were investigating if the meny was crime-related, saying “That’s obviously one line of inquiry we’re looking at, it could be proceeds of ill-gotten gains but at this stage we’re certainly keeping an open mind.”

The spokesman also said that if no one claimed the money, that the teenage boys might be able to claim it.

Talking about their camping experience, one of the girls said: “We have been quite lucky with the weather and we are absolutely loving being first in the queue”.

Adding that, “The tickets will be saving us about £600 – this was too good an opportunity to give up. I wanted to go to Australia anyway and we heard about this at around the same time. Anyone who thinks we are mad for camping out is just jealous!”

The happy campers passed the time playing cards and reading, with another camper saying: “Camping out might seem a bit extreme but it has been a really good laugh. It has been a real festival atmosphere – everyone has been having a few drinks and enjoying themselves”.

A similar scheme was introduced in the 1950’s, where thousands of Brits took advantage of a £10 assisted passage to Australia by boat, earning them the nickname of £10 Poms.