A naked protest against the dependence on fossil fuels by riding bikes across San Francisco was held during the "World Naked Bike Ride" on March 10. According to the organisers, it aims to defend the right of cyclists to ride on the streets in safety.

It also claims to "Celebrate free-body culture, bicycling as an alternative to cars and a generally greener way of living."

This was the 3rd Annual Southern Hemisphere World Naked Bike Ride.

A glimpse at the event.