Underground Manchester

Check out the mysterious world under your feet in Manchester, the subterranean rivers and canals, the abandand tube line, the 1950's atomic bunker under China Town, and the Second World War air-raid shelters - New Manchester Walks organises tours for £8 each on Saturdays only, or they do group visits which I could organise if anyone is interested?  

Have a look at their website http://www.newmanchesterwalks.com as they do walks covering masses of subject areas which if you are following a particular theme, may be helpful.