ST. IGNACE, Mich. (AP) - Ultra-marathoner Jim Dreyer is organizing a yearly race for up to 400 swimmers across the swirling waters where Lakes Huron and Michigan converge.
Dreyer has put together several four-mile swims across the Straits of Mackinac, beginning in 2007. They took place during Labor Day walks across the Mackinac Bridge. The biggest drew 84 participants in 2015.
Now, Dreyer plans to make the Mighty Mac Swim a stand-alone event on the second Sunday of each August, beginning Aug. 11, 2019.
He says there will be room for lots more swimmers than before, because the Star Line ferry service will have a vessel in the water that can accommodate hundreds of people if a mass rescue is needed.
Dreyer is a Grand Rapids-based athlete known for his swims across the Great Lakes.