Hiking trails have historical roots as places of transportation for people, goods, livestock, and wildlife with long-distance passages connecting villages and towns. Walking for leisure took place along garden paths or local forested trails. Recreational hiking grew dramatically in North America in the 20th century as leisure time increased post-war. A surge of outdoor recreationists coincided with the environmental movement of the 1960s and 1970s. People felt an attachment to the outdoors and hiking became a means to explore nature, increase fitness, and express individuality.