Hiking is the preferred term, in Canada and the United States, for a long, vigorous walk, usually on trails (footpaths), in the countryside, while the word walking is used for shorter, particularly urban walks. On the other hand, in the United Kingdom, and the Republic of Ireland, the word “walking” is acceptable to describe all forms of walking, whether it is a walk in the park or backpacking in the Alps.
The word hiking is also often used in the UK, along with rambling (a slightly old-fashioned term), hillwalking, and fell walking (a term mostly used for hillwalking in northern England). The term bushwalking is endemic to Australia, having been adopted by the Sydney Bush Walkers club in 1927. In New Zealand a long, vigorous walk or hike is called tramping. It is a popular activity with numerous hiking organizations worldwide, and studies suggest that all forms of walking have health benefits.
A safari is an overland journey, usually a trip by tourists in Africa. In the past, the trip was often a big-game hunt, but today, safaris are often to observe and photograph wildlife—or hiking and sightseeing, as well.
In 1836 William Cornwallis Harris led an expedition purely to observe and record wildlife and landscapes by the expedition’s members. Harris established the safari style of journey, starting with a not too strenuous rising at first light, an energetic day walking, an afternoon rest then concluding with a formal dinner and telling stories in the evening over drinks and tobacco. The hunting aspect traditionally associated with the safari is said to have its origins in the early 1800s in the region of Évora, Alentejo, where villagers got together to hunt wild boar and reclaim land for farming.
Tourism is travel for pleasure or business; also the theory and practice of touring, the business of attracting, accommodating, and entertaining tourists, and the business of operating tours. Tourism may be international, or within the traveller’s country. The World Tourism Organization defines tourism more generally, in terms which go “beyond the common perception of tourism as being limited to holiday activity only”, as people “traveling to and staying in places outside their usual environment for not more than one consecutive year for leisure, business and other purposes”.