 The 2007 Mark Webber Pure Tasmania Challenge was launched at the 2007 Australian Grand Prix in Melbourne when Webber was joined by sports stars and Kylie Minogue , and Hollywood star Anthony Edwards . The trek was another gruelling physical and mental adventure race about Tasmania in aid of charity but albeit with a new format . Teams competed for honours in two unique categories : the Van Diemen Cup – designed exclusively for corporate teams of four people , and the 2theXtreme Cup – a two @-@ person elite team entry . Both categories trekked , kayaked and cycled alongside each other as they covered approximately 450 km through World Heritage wilderness and along the idyllic coast of the Freycinet National Park . It was held from 17 – 23 November , and for the first time , one of Webber 's fellow Formula One drivers , Heikki Kovalainen , joined him in the challenge . 
