@waterkeepermark

Lawyer, Founder Swim Drink Fish @swimdrinkfish. Former Lake Ontario Waterkeeper @LOWaterkeeper.

 Toronto/ Wolfe Island
waterkeeper.ca
Joined October 2008
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Thank you to every candidate, volunteer and voter who took part yesterday. I'm honoured to be elected and look forward to working with the new Council for Wolfe Island, the heart of Lake Ontario. 💙
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Last day for voting on Wolfe Island. Great to experience the excitement and goodwill of this campaign from doorsteps, on the ferry, at shops and on debate stage. Thank you to everyone for listening and asking questions. Make sure your voice is heard today.
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Another beautiful day on Island. In the fields and on the water.
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Beautiful morning
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Welcoming Brett Rogers As New CEO and President of Swim Drink Fish Canada waterkeepermark.substack.com… @swimdrinkfish @Waterkeeper
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Getting harder and harder to motivate myself to go swimming but days like today make it all worthwhile.
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Always good to run into these old friends on a fabulous sunny morning in Wolfe Island.
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Canada Cup 1984 in Calgary. It was overtime against the Soviets: an Oiler shot, an Islander tipped it in and Canada wins. Kevin Lowe made the case tonight that long time rivals can play together and win. Alberta's future is stronger inside Canada. 🇨🇦
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Mark Mattson retweeted
Will Vasseur@WillVasseurOct 17
Kevin Lowe: “Alberta has earned the right to demand a better deal, and the strongest place to demand it is in the room in a united Canada.” @WesternStandard #abpoli #abreferendum
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The Wolfe Islander 4 is out of service until further notice
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Last run past house on river this season. Boat stored.
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A Thanksgiving Weekend On Wolfe Island waterkeepermark.substack.com…
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Happy Thanksgiving weekend all.
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Meet the Candidates is tonight at 6:00. Come hear from those of us running for Wolfe Island Council and Frontenac Islands Mayor. Can't make it over? The evening streams live on YouTube. markmattson.ca/updates/meet-…
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Excellent article on the last and hopefully remaining border crossing by ferry on the Great Lakes from Wolfe Island to Cape Vincent New York. thewhig.com/news/across-inte…
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I wanted a button to let people know I'm running for Council on Wolfe Island. The heart with water running through it felt right. That’s how I feel living and working on the island. Happy to share button or sign to anyone who asks. Election day Oct 26 markmattson.ca
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Great turn out at Howe Island Meet the candidates. Lots of Wolfe Island representation.
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Once people swim - they become fierce protectors. Great piece from @cangeo on how the Swimmable Cities movement is taking root across the Great Lakes, from Kingston's Gord Downie Pier to the sunrise swimmers in Oakville. Is your waterfront swimmable? canadiangeographic.ca/articl…

Making swimmable cities in the Great Lakes watershed

How three organizations have come together to promote urban swimmability and change our relationship with water — one plaque at a time

canadiangeographic.ca
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Beautiful fall nights in River
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Please join us in congratulating this year’s Terry Backer Award recipients: Mark Mattson, former Lake Ontario Waterkeeper and founder of Swim Drink Fish, and Dean Naujoks, Potomac Riverkeeper! We had an amazing time celebrating them in Quito and recognizing the many years they’ve dedicated to protecting clean water and strengthening the Waterkeeper movement. Their commitment, determination, and willingness to stand up for their waterways, fellow Waterkeepers, and the communities they serve are an inspiration to all of us. Read our blog to learn more about Mark and Dean and the stories behind this year’s awards. waterkeeper.org/news/the-202… #WaterIsLife #AguaEsVida #WaterkeeperConference2026
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