Alex Cape and Susan Simmons set off early Saturday morning, and took 11 hours to complete the 34-kilometre distance.
Simmons, who has MS, says she wants to inspire others with the disease to stay healthy.
"I think if I didn't have MS, I probably wouldn't be doing something like this. I think it was what motivated me to really get fit and healthy," she said.
Simmons, 48, was diagnosed with the disease 20 years ago.
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