A. With most Canadians living in the southern part of the country, much of Canada's 9.9 million square kilometres is uninhabited. Consequently, outdoor wilderness activities—such as hunting, fishing, camping, hiking, and canoeing—are suitable pastimes. Of these, camping has the widest appeal. More than one third of Canadian households contain camping equipment, and about one quarter of the population camps each and every year. More than 37 national parks plus innumerable provincial parks and private campgrounds regularly attract camping enthusiasts and issue thousands of permits each year.

B. The most common camping choices in Canada range from posh, fully-equipped motorhomes to rustic wilderness camping with whatever the hiker can carry in a backpack. The most lavish option, the 6- to 13-metre-long motorhome, consumes tremendous amounts of fuel and requires large parking spaces in campgrounds. These campers should reserve their campsites well in advance. Retired couples sometimes take a year or more to travel around North America this way, perhaps in a cavalcade of up to a hundred vehicles. Another option is the RV trailer, which is shorter but requires a towing vehicle. RV trailers are far cheaper than motorhomes but still provide the conveniences of home.

C. In Canada, motorhomes and RVs are costly to buy or rent and to use. For those requiring a cheaper alternative and willing to forgo homey conveniences, the lightweight tent trailer is a possibility. Typically costing less than $10,000, it's easy to pull and manoeuvre. Essentially, it's a collapsible tent-like structure mounted on a rectangular four-sided box attached to two wheels. The interior varies with the model, the more expensive ones including a rustic kitchen, beds, running water, and an electrical hookup. More stable than a tent, which sits on the ground, its construction may still lead to camper discomfort during extreme weather.

D. Less restrictive and more economical than other mobile accommodations, tents can be used along designated hiking trails or in established campgrounds; though, regulations prevent tenters from pitching a tent anywhere they choose. Driving or biking from campsite to campsite stretch of the Trans-Canada highway, for example, has campgrounds that cater to motorhomes, tent trailers, and tenters. Some campgrounds have running water and showers, whereas others have only outhouses and outdoor cold-water taps. Reservations are accepted for any type of camping. Websites and books are available with detailed information about campsites in each province, facilitating vacation planning for adventurous campers.

E. Not given in any of the above paragraphs.