The sun had yet to come up in Edmonton, Alberta, and it was more than 20 degrees below zero. Tanis Smith layered up anyway, ready to run up and down hundreds of stairs among the trees in the Saskatchewan River Valley.
When she arrived at 6 a.m., 10 other people joined her. It wouldn’t be the last time they risked freezing their toes off to get in a workout before the rest of the world wakes up.
