Project E20 at Zip World London

If zooming down the world’s longest tunnel slide at 15mph isn’t enough to get your adrenaline going, perhaps adding a petrifying mutant creature into the mix will do it. For Halloween, the ArcelorMittal Orbit in Stratford will become an eery abandoned research facility under military lockdown. Guests will have to navigate a spine-chilling scare maze in order to get to safety and avoid being contaminatd by ‘a highly contagious, not-quite-human creature’ created out of an experiment gone wrong. Every time someone escapes down the 178-metre slide, the facility gets one step closer to being sealed for good. You think you’ve got what it takes?