Charity Miles, a free app for iPhone and Android, motivates its members to get off their butts by helping them earn corporate sponsorships whenever they exercise. Running and walking earn charities 25 cents per mile; biking gets them a dime.
And last week, Gene Gurkoff—the founder of Charity Miles—challenged you to get fit while supporting a cause you care about. More than 4,000 of you traveled 31,280 miles—all while Sambazon supported the charities you love. Check out a few of those sponsored miles in action by clicking through this slideshow.
If you haven’t found a cause that deserves to cash in on your fitness routine, here are a few tips from Gene about how to do that. (Once you do, tell us how many miles you’ve traveled and which causes you care about with the hashtag #100StartsWith1.)

















Two people study a mapCanva
Foggy Chinese villageCanva

A young lion playing with an older animal
A colorful bird appears to be yelling at it a friend
An otter appears like it's holding its face in shock
Two young foxes playing in the wild
Two otters appear to be laughing together in the water
A fish looks like it's afraid of the shark behind it
A bird appears to be ignoring their partner
A squirrel looks like it's trapped in a tree
A bear holds hand over face, making it appear like it's exhausted
A penguin looks like its trying to appear inconspicuous
A young squirrel smells a flower
An insect appears to be smiling and waving at the camera
An otter lies on its side apparently cracking up laughing
Two monkeys caught procreating
A young chimp relaxes with its hands behind its head
A snowy owl appears to be smiling
A monkey holds finger to face as if it's lost in thought
A turtle crossing the road under a 'slow' sign
A polar bear lies on its back like it's trying to hide
A rodent strikes human-like pose
An excerpt of the faxCanva

Robert Redford advocating against the demolition of Santa Monica Pier while filming "The Sting" 1973