I lived in Taiwan from 1996-2004 and make yearly trips back to visit friends and family. From 2001-2004 I lived in Kaohsiung and would regularly go mountain biking in the hills around Pingdong, Fengshan, Kending, and south of Taidong. While I did find some single track, most were "out-and-back" technical trails and I never found any "loops". What I did find were miles and miles of power line trails. I purchased several maps (pre-Google maps) in Chinese and used those to plan my trips. Now, the last time I rode those trails was Oct. of 2007. I rented a 150cc locally made dual sport. Very different from the WR I ride now. But, I had fun ripping up and down those trails from Fengshan down to Kending. In all the years I rode in Taiwan, I never encountered another mountain biker or dirt biker off road. It was as if it was my own private playground. If you have any questions, I share w/ you my dated knowledge.