A kayak is a small, narrow watercraft which is propelled by means of a double-bladed paddle. The word kayak originates from the Greenlandic language, where it is the word qajaq (pronounced ). In the UK the term canoe is often used when referring to a kayak.
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.