Sightseeing On The Run: 12 Great City Running Tours

Name the toughest part about traveling (and, no, packing doesn't count). If you said sticking with your workout program, join the club.

A whopping 50 percent of people said exercising on the road was stressful while another 17 percent said it was very stressful, according to a survey by travel website TripIt.

Click HERE to see the best running tours in 12 of the world's coolest cities.

But if you're a runner, you're now in luck. From Los Angeles to Sydney to Paris, running tours are popping up in cities all over the world, meaning you don't have to sacrifice a sweat session for sightseeing.[slideshow:696]

Granted, you can hit the pavement on your own—and no doubt you will—but with a running tour, you don't have to mess with maps or apps to figure out where you're going, and getting lost is no longer an issue.

Even better, you're with a local guide, so while you're burning off those vacation calories, you're also getting an insider's view of the city. Want to know what buildings you're running by? Where locals love to eat? What other active adventures you can do in the city? Your guide can give you the scoop. Plus, along the way, you'll undoubtedly find places you want to revisit later, not to mention unearth running routes you would never have discovered on your own. Plain and simple, running tours offer an engaging, eco-conscious, waist-friendly way to see a city.

Here's a peek at running tours in twelve of the world's most fascinating cities. Take one of these, and you won't feel an ounce of guilt about indulging in deep dish pizza in Chicago, sangria de cava in Barcelona, or gelato in Rome.

Click HERE to see which city running tours made out list.