Do people swim across Lake Ontario?

Lake Ontario is one of the world's most difficult marathon swims, defined as a non-stop swim in open water for at least 10 kilometres. It is not as storied as the English Channel swim, and certainly not as trafficked – 2,400 people have completed solo crossings of its 30-kilometres.



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For those of you wondering if it is safe to swim in Lake Ontario, Waterkeeper's answer is, Yes! It just depends where and when you want to swim.

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Ted Mercier, Joseph Hawryluk, Graham Scott On August 18th 1954, teenagers, Ted Mercier, Joseph Hawryluk and Graham Scott swam across the Niagara River from the Canadian shore near Seneca Street to the American shore approximately 400 yards (the length of 4 football fields) downstream.

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Lake Ontario is one of the five Great Lakes of North America. It is bounded on the north, west, and southwest by the Canadian province of Ontario, and on the south and east by the U.S. state of New York. The Canada–United States border spans the centre of the lake.



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Lake Superior is the Cleanest and Clearest Great Lake Because of its somewhat isolated location and long cold winters, not much farming is done along Superior's shores. This means lower amounts of nutrients, sediments, and organic material are floating around the lake.

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Today, Lake Ontario is home - and a source of drinking water - to 9-million people living in Ontario, Canada and New York State, USA.

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While there have been past “sightings,” most have turned out to be pranks or misidentifications. The reality is that the largest of the Great Lakes (Lake Superior and Michigan) are extremely deep lakes that are too cold for sharks.

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Lake Michigan in particular is the roughest of the Great Lakes, and poses a major risk to those thinking of taking a dip.

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Here's Why Lake Michigan Is Supposedly the Deadliest of the Great Lakes. Compared to the other Great Lakes, Lake Michigan is considered to be the deadliest of them all. Here's why. Sadly, many of the Great Lakes aren't considered to be particularly safe to swim in, due to high pollution levels and strong currents.

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Lake Michigan's riptide and longshore tides are unparalleled when it comes to danger among all the Great Lakes. In fact, due to its unnaturally strong winds, it's not unusual for this lake to have strong rip currents that can be dangerous for swimmers.

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Lake Erie is the shallowest, warmest, and most productive of the Great Lakes. Three distinct basins provide a variety of offshore habitats. The Detroit River, Maumee River, and smaller tributaries drain into the western basin, which averages 24 feet deep and contains extremely nutrient-rich water.

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Sturgeon (Acipenseridae) are the largest freshwater fishes in the world. Of the 23 sturgeon species worldwide, one is found here in Ontario – the lake sturgeon (Acipenser fulvescens). The lake sturgeon cannot be mistaken for any other species in Ontario.

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At 1,943 feet (592 meters), Crater Lake is the deepest lake in the United States and one of the deepest in the world. The depths were first explored thoroughly in 1886 by a party from the U.S. Geological Survey.

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On August 6, 1918, a dumping scow broke loose from its towing tug in the rapids of the upper Niagara River with Gustav F. Lofberg and James H. Harris aboard. The men opened the bottom dumping doors and the scow grounded in the shallow rapids, only 600 metres from the brink of the Horseshoe Falls.

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