The Vaults in Waterloo form a labyrinthine underground world; Vault Festival aims to make the most of all that interesting space with six weeks of unusual (and epic) events. Kick it all off with this opening party, designed to get you dancing and making merry into the early hours. This is a straight-up night of pure fun, and we’ve managed to wangle some tickets for next-to-nothing. So raise your glasses to Vault 2014: it’s gonna be a good ’un. General admission. Over 18s only.