Urban Ninjas Metro Detroit checking out Flint Michigan’s Hidden Parkour and Freerunning Gem for the first time. This place is literally a Mecca for Parkour! Going to make this a regular trip. If you live in the Flint area let us know we will come jam any time , we also plan on hitting this place up at least once a month! visit our site at meetup.com/urbanninjasdetroit/