Dave Billings, who has been documenting the progress on his YouTube and TikTok channels, is creating a 40-foot-long tunnel that he claims is nearing completion, connecting a series of bunkers to his main property.

In a recent video, Dave could be seen descending through a narrow trapdoor and landing on a wooden wheeled pallet. As he panned his camera around the enclosure, he revealed both old and new bunkers while propelling himself deep along the underground tunnel.

The passage led Dave to a vast brick room, before he headed back to the old bunker and climbed a stone staircase, ultimately exiting the enclosure via a nearby well.

Dave kicked off his unique project in December 2023, converting a shipping container into a survival bunker, reinforced with timber and concrete to ward off any potential collapse. The survivalist expressed the deeper challenges of post-apocalyptic living in his lair, however.

“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 solution is a comprehensive guidebook, which he boasts, “tells you how everything is made”.

Dave elaborated on the contents: “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.”