The Scarborough Bluffs, also known as The Bluffs, are an escarpment in the Scarborough district of Toronto, Ontario, Canada. Forming much of the eastern portion of Toronto's waterfront, it is located along the shoreline of Lake Ontario. At its highest point, the escarpment rises 90 metres (300 ft) above the coastline and spans a length of 15 kilometres (9.3 mi).