In American English, walkway is a composite or umbrella term for all engineered surfaces or structures which support the use of trails. The New Oxford American Dictionary also defines a walkway as "a passage or path for walking along, esp. a raised passageway connecting different sections of a building or a wide path in a park or garden." The word is used to describe a footpath in New Zealand, where "walkways vary enormously in nature, from short urban strolls, to moderate coastal locations, to challenging tramps [hikes] in the high country [mountains]". Similarly in St. John's, Newfoundland, Canada the "Grand Concourse", is an integrated walkway system that has over 160 kilometers (99 mi) of walkways, which link every major park, river, pond, and green space in six municipalities. In Toronto, Ontario, Canada, the SkyWalk is an approximately 500 metre enclosed walkway connecting Union Station to the CN Tower and the Rogers Centre (SkyDome). It is part of the PATH network.