Adventurers Cas and Jonesy, known for their daring exploits which include crossing the Tasman Sea and trekking Antarctica, are heading off on their next adventure, this time in Australia’s Outback. What’s more, they are looking for two Aussie travellers to join them on a Top End Time Out Challenge.

The Northern Territory’s Top End, which encompasses Darwin, Kakadu, Arnhem Land and Katherine, offers the full scale of adventure from riding rough on a Kakadu four-wheel drive safari, lifting off on a scenic flight over the Northern Territory’s most picturesque landscapes and witnessing sunsets over the Arnhem Land escarpment.

A daring duo, Cas and Jonesy were the first to cross the Ditch in a kayak – paddling 3318km without assistance across the Tasman Sea - and made history earlier this year by completing the longest unsupported polar expedition of all time, trekking from the edge of Antarctica to the South Pole and back without assistance. So they will have some great stories to tell whoever accompanies them on this latest venture.

“Every day is an adventure – it can happen anytime and anywhere, and we were thinking about our next challenge when we heard about what you can get up to in the Top End,” said James ‘Cas’ Castrisson.

One lucky Aussie plus a friend can join Cas and Jonesy on their trip by jumping on the Australia’s Outback Facebook page (Facebook.com/northernterritoryaustralia) building their ultimate Top End itinerary and describing it in three words for the chance to win their spot on the Top End Time Out Challenge.

“The Northern Territory is real adventure territory, so what could be better than exploring it as a prize winner with us!” said Justin ‘Jonesy’ Jones.

The winner will be announced on 26 September and the five night trip will start just two weeks later on 5 October in Darwin, one of Lonely Planet’s 2012 Top 10 Must Visit Cities, before travelling to experience the winner’s chosen itinerary.

To learn more about taking a Top End Time Out, visit www.travelnt.com.