Need a Memorial Day to Remember? Ice-Bike the Northwest Passage

When I first mount the bicycle—a sturdy Rocky Mountain Blizzard with 4.8-inch-wide tires—and push, I barely move. I grit my teeth, throw my weight onto the pedal, and the bike ekes forward. We power our way along Polar Bear Point among glistening, 6-foot-thick ice caps and sunning ringed seals. After a short time, my legs wobble like jelly. It took five flights to reach the Arctic Watch Wilderness Lodge on Canada’s Somerset Island, roughly 500 miles north of the Arctic Circle.