Trailwalker is a charity walk with a difference. Walkers cover 100 kilometres of hilly terrain in Hong Kong's New Territories in teams of four. The start is at Pak Tam Chung in Sai Kung and the Finish is near Tuen Mun. The route follows the Maclehose Trail over some of Hong Kong's most spectacular mountains, such as Ngau Yee Shek Shan, Ma On Shan, Needle Hill and Tai Mo Shan.