Hidden history buried in the hill above Portsmouth

She says: ‘We were taken to the shelter by bus and some mornings, when we came to leave, we could see fires and smoke over Portsmouth.’

Her life has gone full circle because, for the past 30 years, she and her husband Henry have lived opposite the tunnel entrances.

Mrs Hutchings, of Cliffdale Gardens, London Road, Cosham, has sent me the two colour photos here.

She adds: ‘One entrance is plain to see in the photographs, the other has been completely covered by a large mound of earth. We think there was a large generator outside the entrance. It is now our waste bin area.

‘It was decided several years ago to seal the entrance for public safety. There were fears children would enter and get lost. It was supposed the original plans had been lost when the Guildhall was destroyed.

‘The local fire brigade, using guide ropes, explored the tunnels before closing them.

‘They found a dispatch rider’s motorcyle and many iron-framed bunk beds,’ she says.

When the air raid sirens sounded, people would flee their homes for the night and make their way to the tunnels seeking protection from the bombs. There was enough room for 2,535 people, but numbers often stretched to double this in times of need.