The massive fetish event is back in its south London home under the arches for another gargantuan gropetastic affair with a spring twist. Their bashes are hugely popular with show-offs, goths, industrial punks, burlesque beauties and circus freaks alike, who go for six areas of titillating fun including dancefloors, aerial performances, cabaret, erotic installations, pole dancing, body art, medical equipment and, of course, their infamous couples' playrooms. Dress in your latex, fantasy, drag, burlesque, medical, uniform…finest and prepare to explore. DC: No street clothes. For full details, see website.