Lake Ontario Waterfront

Locations along the Scarborough Bluffs and Lake Ontario Waterfront
Updated: March 27, 2020

landslide warning sign

Toronto and Region Conservation Authority (TRCA) is warning of risks due to landslides along the Scarborough Bluffs.

Under such conditions, paths on the tableland at the top of the bluffs can slide out at any moment. Additionally, trails at the base of the bluffs along the lake’s edge have been and can continue to be overcome by debris resulting from landslides

The risk to public safety is a significant and real concern. Therefore, access to the shoreline has been and will continue to be PROHIBITED for public safety reasons. Signs are posted at access locations where landslide have already occurred and impacted roads and trails.

TRCA will be conducting clean-up of landslides over the next few weeks. We ask that the public refrain from accessing these areas for safety reasons due to equipment use, as well as maintain a minimum distance of two metres from TRCA personnel to adhere to social distancing guidance.


Toronto and Region Conservation Authority (TRCA) has jurisdiction over 72 kilometres of Lake Ontario waterfront. We are committed to preserving and enhancing the health and beauty of this entire shoreline.

TRCA’s area of jurisdiction on the waterfront extends from the City of Toronto/City of Mississauga border in the west to the Town of Ajax/Town of Whitby border in the east.

Across this shoreline, nine watersheds drain into Lake Ontario: Etobicoke Creek, Mimico Creek, Humber River, Don River, Highland Creek, Rouge River, Duffins Creek, Petticoat Creek, and Carruthers Creek.

mouth of Mimico Creek
The mouth of Mimico Creek.

The sediment that makes up the Toronto Region shoreline is generally a mixture of sands, silts, clays, tills, and gravels, all of which are highly erodible. As a result, the shoreline has been — and continues to be — modified by wave action, ground water conditions, wind erosion and numerous other factors. Serious loss of property and threats to homes, roads and services can and have occurred as a result of these processes.

TRCA works to maintain shoreline protection and restore terrestrial and aquatic habit along the shoreline,  while providing recreational opportunities through the design and construction of waterfront parks. Integrated shoreline management is essential to efforts to achieve a waterfront that is clean, green, accessible, diverse and attractive.