If the site of flesh makes you uncomfortable, you're advised to stay away from The Art Museum area Center City tomorrow (Sat 9/7). And, if you like strutting your stuff, you have some options!
Along with the 10th anniversary of the Philly Naked Bike Ride (in the afternoon), the 2018 Philadelphia Undy RunWalk is taking place, benefiting the Colorectal CancerAliance. The 5k is set to begin at 8:30 on MLK (next to the Art Museum) and you can still sign up HERE
And, if that isn't liberating enough, you can ride with the Philly Naked Bike ride at 5. And, while there's no specific charity benefactor, the theme of the ride is "Riding together to promote fuel conscious consumption, positive body image, and cycling advocacy!"