Due to the roughness of many of the state’s back roads, mountain biking is a particularly popular style of cycling in South Australia. Favoured destinations include the Adelaide Hills and other parts of the Mount Lofty Ranges, the Fleurieu Peninsula, the Barossa Valley, the Flinders Ranges and Kangaroo Island. Mountain biking is not permitted in national parks or conservation areas, however. The most famous cycling route in South Australia is the Mawson Trail, which stretches for 497 miles from the heart of Adelaide to Blinman in the Flinders Ranges. Following pre-existing 4WD tracks and dirt roads for much of the way, it includes many challenging hills and some technical sections, most notably in the northern half.