It's arguably the world's toughest race in one of the world's toughest terrains - seven days of non-stop racing through 500km of treacherous wilderness compounded by extreme weather.
Four athletes from the North Face Greater China team will embark on an epic journey at the Adventure Racing World Championship - billed as the 'Olympics' of adventure racing - starting on Thursday in Scotland.
For Hong Kong's Stone Tsang Sui-keung, Singaporean Esther Tan Cheng Yin, Hong Kong-based Englishman Stuart Sharpless and American Ryan Blair, it's one adventure they are not exactly relishing.
The course is about 530km long and competitors are expecting 200km of trekking, 200km of mountain biking, 125km of kayaking and 2km of swimming, along with rope activities. Successful athletes will have covered a total ascent of 22,500 metres, nearly three times the height of Mount Everest.
The physical and mental demands of such a punishing schedule would tax even the fittest athlete as 60 of the world's best teams begin their ordeal at Fort Williams in the Western Highland region of Scotland.
Competitors will carry a satellite tracking device in their backpacks so their movements can be monitored real-time via the internet.
The North Face team are the only Asian team competing in the event. And as stunning as the scenery may be, the race is expected to be a hellish experience.