Tunnels under Liverpool, UK

[StainlessSteelCynic]

So according to the BYB, Liverpool got targeted with a nuke greater than 0.5Mt.
Not having the Survivors Guide To The UK handy I don't know how much more detail was given to the strike on Liverpool but I doubt the authors would have known much about a series of tunnels under the Liverpool area dating from approx. 200 years back.

There's been rumours and anecdotal stories and even some investigations but in the last couple of decades a volunteer group has been conducting a more systematic exploration and excavation: details on the following link,
http://www.bbc.com/future/story/2015...s-of-liverpool

The tunnels could prove an item of interest for any campaigns that are set in the UK and given the new theory on the reason why they were constructed (detailed in the link above), they could stretch out to almost anywhere.
These days, with the internet, it's much easier to find information on the tunnels than the when I first read about them so for those after additional info, here's some other links (and some good photos).
http://www.williamsontunnels.com/
http://www.williamsontunnels.co.uk/
http://www.atlasobscura.com/places/williamson-tunnels
http://www.smithjournal.com.au/blogs...mson-s-tunnels
http://www.theguardian.com/travel/20...n-tunnels-tour
https://en.wikipedia.org/wiki/Williamson_Tunnels