It makes use of jungle logging tracks during the wet season. Logging stops during the rainy season because conditions are too bad. Needless to say, the logging trucks have carved the tracks up a treat and the monsoon then makes them impassable to general traffic. These conditions provide the essence of the Challenge - mud, water, heat, humidity and insects. The effects left on the landscape by the passing of the competitors are insignificant compared to those inflicted by nature itself.
Competitors carry their own supplies, cooking and survival gear, and spares.
Points are awarded for driving skill, not just outright speed, at a number of special stages and obstacles. As well as awards for each class, there is a Jungleman Trophy and a Best Team Spirit Trophy . 16 cars competed in the 1995 Challenge. Voo Ken Yen and James Wong came first overall in a modified Toyota LandCruiser BJ43 turbo diesel. Mike Smith and Chris Hummer were second overall in a modified Range Rover.