Downtown Winnipeg is centred on Portage Avenue and Main Street, and is bounded by the Assiniboine River on the south, Colony and Balmoral Streets on the west, Notre Dame Avenue, Princess Street, and Logan Avenue on the north, and the Red River on the east. It includes the Exchange District, Central Park, The Forks, and Winnipeg's Chinatown. The downtown area is roughly three square kilometres. Portage Avenue is the city's busiest thoroughfare. Winnipeg Square, the MTS Centre, Portage Place, and the flagship store of the Bay are all located on the downtown section of this street. Most of the downtown is operated by the downtown winnipeg biz, The ED and CEO of the Biz is Stefano Grande. The biz offers a green team and a security team called the Watch.