Leake Street (near Waterloo Station) is one of the few places in London where the law against graffiti isn't enforced. The result is a nearly three hundred metre tunnel where artists have covered almost every inch from ground to ceiling in spray-painted artworks of all shapes and sizes.

It is also the best place for people like Gareth to hang out, smoke a spliff, and make art after a long day at work.

This is a photo-story about the guy, and the art he chooses to express himself by.