These guys have done a really great job here. The video is pretty long but it shows the amount of preparation, commitment and expertise needed to achieve such a thing.

In the middle of the Paris catacombs lies a bunker where the French resistance was organized during WWII. It's now separated from the rest of the catacombs network, but a subway utility tunnel goes right next to it. After gaining access to the tunnel itself, they calculated precisely where the bunker was behind them, and spent days digging a long chatière to it. They are finally rewarded by organizing a massive party inside!

Bloody hell. Good stuff from them. No doubt very sealed by now..?

Crazy and awesome but at the same time very stupid as things like this will only increase the already insane amount of security there. I expected some beautiful pristine bunker but they ended up in a shithole full of graffiti, so I don't think it's worth the effort and bothering the security services at all. But I guess they mainly did it for the kicks, still epic work and cool party.

Incredible! how satisfying it must have been for those guys to see their hard work pay off like that! Simply incredible!

well, this is incredible!