Thousands bared what they dared on Saturday to participate in the annual Philly Naked Bike Ride.

 

The ride began near31st and Powelton atDrexel Park and went on for two-and-a-half hours, passing down Market Street and through Center City before it dissipated into after-parties around the city.

 

Related: NSFW: World Naked Bike Ride photos from around the world

 

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This was the sixth naked bike ridein Philly since the tradition began in 2009 -- inspired by the World Naked Bike Ride in 2004.

Why bike nude? Among the goals of the Philly Naked Bike Ride are"to encourage everyone to embrace nudity as a normal, enjoyable way of life" and to "desexualize nudity," organizers say.

And also, because it's fun.

NSFW: Click to see the entire NSFW gallery from the Philly Naked Bike Ride on Aug. 29, 2015.Caution: includes some nudity. Not intended for anyone under 18.

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