Sydney is located on Cape Breton Island on the east side of the Sydney River. Sydney has a strong ethnic population. As the only significantly industrialized district in Atlantic Canada, Sydney is the heart of Nova Scotia’s second-largest urban cluster. The city’s central business district impresses with the variety of products and services offered by downtown merchants. The town has become an important gateway to the scenic and historic attractions of Cape Breton Highlands and for cruising on the Bras d’Or Lakes. On the city outskirts is Fortress Louisbourg National Park, presenting Canada’s largest historical reconstruction. Here visitors can enjoy a town perfectly restored to its 1740 appearance. A walk on the half-mile Boardwalk promenade in the heart of downtown provides a panoramic view of the harbor. Apart from Louisbourg Fortress, the town also features a railway museum at the Sydney and Louisbourg Historical Society and the Atlantic Statiquarium, a marine museum devoted largely to underwater treasure.