Delve into the underground tunnels below Waterloo to experience this year's wild and lustful party from Artful Badger. As animalistic as they sound, they're all about the fun and the discovery. Explore secret rooms, stalls, games, performances, artworks, face and body painting, bands, DJs and, of course…deliriously brilliant dancing and drinking. Over 18s only. Fancy dress code: amorous animals (think frisky ferrets and sinful snakes). YPlan price is inclusive of a £1.50 festival charge.