Swarovski: London Treasure Hunt

Calling all magpies, this September Swarovski hosts a treasure hunt to mark 'Discover your Light', the company's first foray into film. The hunt will take teams around London seeking out clues and collecting prizes along the way, ending with an after-party and prize-giving. To take part, you need to register online at www.swarovski.tv/discoveryourlight and have an app-enabled phone.