HART volunteer Neil Oxenbury inspecting the frames thought to have been the bases for rifle targets (Image: Richard Steer) Neil Oxenbury, one of volunteers, said: “We’ve just had the 80th anniversary of VE Day and there’s not many people alive now who can remember exactly what happened.

"So, I think it’s important that we understand what’s here.

“Our role as HART volunteers is to help add to the understanding about these sites and to monitor their condition.”

Among their findings thus far have been the identification of a possible rifle range previously thought to have been part of the sea defences.

The volunteers are helping to record and monitor their finds, which they are sharing with local historians.

The World War One pillbox just off the Norfolk Coast Path on the edge of Stiffkey Marshes (Image: Richard Steer) One of the easiest of the sites to spot is a round pillbox just a few metres from the Norfolk Coast Path.

It would be reasonable to assume it was one of the 28,000 built in Britain as part of anti-invasion preparations during the Second World War.

However, the pre-cast concrete blocks used in its construction, and its circular shape, point to this pillbox having been part of defences that were put up during the First World War.

It was part of a........

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