Bunker has long been seen as the seen as the benchmark for UK Drainers, it is massive and to see it all requires a few hours walking.
Features range from massive 40/50 foot condersation chambers to the "plug" and several stair sets and finally the mighty RAEL chamber.
If you are into draining this is a must!
Bunker was once regarded as one of the UK's best drains, and was one of the first major finds many years ago. Bunker is a huge complex spanning 3.5 miles under Warrington and was constructed during the 1980s, therefore is entirely concrete.
The "Plug" melted our faces
And the Outfall
And I'll finish off by going all David Attenborough
Hundreds of eels