found: LC database, Sept. 21, 1998(titles: trekking)
found: Am. her. dict.(trek: to journey on foot, esp. to hike through mountainous areas)
found: The Macquarie dict.("Bushwalking: the sport of making one's way on foot through the bush, often on tracks designed for this but sometimes for longer periods through virgin terrain.")
found: The Australian encyc.("Bushwalking: As a form of weekend and holiday recreation, bushwalking is popular throughout Australia ... Physical recreation is not the sole aim of bushwalkers; many also practice nature study and photography. The main objectives of most walking clubs are the dedication of large areas of country as public reserves and the preservation of flora and fauna.")
