Scarborough Bluffs

Scarborough Bluffs is a prominent escarpment along Toronto’s eastern waterfront, rising above Lake Ontario for about 15 kilometres and reaching roughly 90 metres at its highest point. Formed as part of the old shoreline of Glacial Lake Iroquois after the last ice age, the bluffs expose important geological layers and supplied material that helped create the Toronto Islands. Their striking appearance shaped local naming from the colonial period onward and later became a symbol of Scarborough. Long valued for scenery and recreation, the bluffs are also fragile and unstable, with erosion, collapses, and development damage prompting ongoing conservation and shoreline protection efforts.

Ontario · Canada