These kind of Zombie theme parks or adventure days have been something I’ve been thinking about for a while. There is a lot of abandoned buildings, complexes and spaces that could be converted for a Zombie Killing Challenge roadshow. We could use old Maplin, Toys R Us and Debenhams stores to give that sense that the apocalypse has only just taken place. We could also make it fast and dangerous with motorbikes, cars and go karts.
There are two offerings:
http://www.zombieexperiences.co.uk
Both seem woefully underwhelming through the lack of social media presence and poorly executed creative, so parting with £110 or whatever seems to be way off.