Runners like Sauriol are combining their love of travel with a pair of laced up running shoes and redefining what it means to go on vacation. “On your feet is one of the best ways to see a new city,” said Sauriol, whose first international marathons in Berlin and Dublin got her hooked on adventure travel. “I can’t stop. There are so many places I want to go.” That desire to see the world on your own two feet is the premise of Marathon Tours, a company that organizes trips for runners on all seven continents.