Fetish fans arrived en masse to the 30th Folsom Street Fair in SoMa for day full of fun, sun, whips, chains, and brazen nudity.

The event, which raised $325,000 for local and national charities in 2012 alone, was greeted by cloudy skies, perfect for festival goers wear next to nothing. When the event first started in 1983, it was a little-known local event that picked up where the increasingly safe and family-oriented SF Pride Parade let off. Today, corporate sponsors from beer companies, wireless carriers, and megachain hotels all take part in the annual Folsom Street Fair.

Here are a few images from Sunday's bacchanalia. Enjoy.