Trans Canada Trail

The Trans Canada Trail is the world's longest network of recreational trails. When fully connected, the Trail will stretch 23,000 kilometres (14,000 mi) from the Atlantic to the Pacific to the Arctic oceans. More than 16,800 kilometres (10,400 mi) of trail are currently usable, making it approximately 73% complete in 2012. Two hundred forty gaps totaling 6,200 kilometres (3,900 mi) must be bridged in order to achieve a fully connected trail. The Trans Canada Trail has given itself until its 25th anniversary and Canada's 150th anniversary in 2017 to reach this objective.
More info on http://tctrail.ca/explore-the-trail/ and http://en.wikipedia.org/wiki/Trans_Canada_Trail