Man shows off manhole in back garden – people can't believe secret lurking beneath

A British man has shared a glimpse of the incredible construction work found under his back garden – all disguised by an ordinary manhole cover.

Dave Billings, who has been documenting the work at his home on his YouTube and TikTok channels, resides at a former army camp from the Second World War. After years of building off-road race cars and Motorsport Roll cages, he decided it was time for a new project – digging a 40-foot long tunnel which he claims is now close to completion, linking a series of subterranean bunkers to his main property.

Dave began a recent clip by descending through a narrow trapdoor and dropping onto a wooden wheeled pallet, on a track similar to a mine cart. Panning his camera around the enclosure, he revealed old and new bunkers as Dave propelled himself deep along the underground tunnel.

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It led to a huge brick room, which Dave said will soon be completed, before he headed back to the old bunker and a stone staircase that saw him exit the enclosure via a nearby well.

Dave's claustrophobic followers expressed fears about the project, meanwhile, with one person admitting: "You are brave, I'm having a panic attack just watching you." A second confessed: "This encases all my worst fears."

Meanwhile a third added: "As you started going down my fear level went up, then even further when you laid down. Only peace was seeing the larger rooms on the end, but these tunnels are not for me."

Dave began the project in December 2023, which sees a shipping container protected by timber and concrete to prevent walls from caving in. "It's one thing building yourself a bunker, but there's one more thing you've got to think about," he explained.

"If the worst did happen and we had a big nuclear blast, how would you restart?" His answer – an illustrative book he claims "tells you how everything is made". He continued: "Penicillin, surgery tools – it basically goes through how civilisation was made. But my favourite bit is how to make alcohol – because I think if you're going to survive a nuclear blast, you're going to need severe amounts of alcohol."

"If a nuclear bomb was to be dropped, none of the natural things in that book would be any good for consumption," one sceptic responded. "I suppose you could eat the book."

Whilst a second outlined a pitfall of Dave's plan: "Unless you have all of the supplies listed in the book stored away in your bunker you're still not gonna survive. Eventually you'll run out of food and supplies and everything above will be radioactive."