Each winter, 7.8km (4.8miles) of the Rideau Canal in Ottawa freezes into what is dubbed the World's Largest Skating Rink - the Rideau Canal Skateway . Located in the capital of Canada, anyone can lace up a pair of skates and glide along this spectacular World Heritage Site, which is maintained during the winter by the National Capital Commission. Each year more than a million skaters visit the Skateway, with peak season during February's Winterlude festival. We begin our tour at the northern end of the canal, in the shadow of a number of icons of the city - the brutalist architecture of the National Arts Centre on the left, Parliament Hill, the Government Conference Centre (former train station) and the Chateau Laurier hotel beyond the bridge, and the new sweeping glass facade of the Convention Centre on the right.…