The tunnels underneath Birkenhead High School Academy were originally opened in 1940.

They were paid for by parents to allow the return of girls who had been evacuated to Shrewsbury during World War II

Contained within the cramped, dimly-lit cold space was seating for around 150 pupils.

After war ended, the tunnels were closed but were recently unearthed as part of the school's refurbishment.

Visited as part of H.O.D week with missmahjong and Plusone.

Few more pics

Being to mean to pay, I can't see any of these pics.

It reminds me of a friend talking about the mines and tunnels of north wales and saying he would like a map of them. I offered to supply one and asked him what scale he's like etc. He delightedly gave me all this information, and I supplied him with a totally black rectangle! Well it's pitch black underground!

In my defence I have to say he was guilty of equally idiotic tricks aimed at me.

Hahaha, nice one ex

Regarding that public warning of the differences between German and British aircraft, it would have been very difficult to tell the bifference between a few of them.
Some of the differences are very subtle

We thought that especially at height and travelling!!

Exactly Rude. Also, at height it would be hard to spot the livery
Maybe they sounded different because there is no way I would be able tell the difference and would probably have run for cover just to be safe