Lake Ontario Waterkeeper

The Waterkeeper responsible for founding the Swim Guide, Lake Ontario Waterkeeper is a Toronto-based charity that has achieved global impact through its projects. Founded in 2001, the Lake Ontario Waterkeeper has worked on a range of water-related issues, from sewage contamination to microplastics to the Darlington nuclear plant refurbishment.

Lake Ontario Waterkeeper will be monitoring the Toronto Harbour in 2017. Swimming is prohibited in the Toronto Harbour, but it is used by thousands of recreational water users. Three separate locations are sampled: Rees St. Slip, Marina 4, and Bathurst Quay. Toronto Harbour is one of the few locations in Swim Guide that caters specifically to boaters as opposed to swimmers.  Lake Ontario Waterkeeper is also running a water quality monitoring program in Kingston, ON. Click below for more information on Kingston and Frontenac water quality.

Kingston Swimmable Water Restoration Program


phone: 1 (416) 861-1237




address: 379 Adelaide Street West (Basement, west side)

Toronto, ON M5V 1S4

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Swim Guide shares the best information we have at the moment you ask for it. Always obey signs at the beach or advisories from official government agencies. Stay alert and check for other swimming hazards such as dangerous currents and tides. Please report your pollution concerns so Affiliates can help keep other beach-goers safe.

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© Lake Ontario Waterkeeper, 2011 - 2018