Part of the tour took us down to the tunnels where North Korea have tried to tunnel to Seoul. We got to wear these cool blue helmets which was lucky because the tunnels were pretty low and I managed to hit my head a couple of times! They told an odd story about when the tunnels were first discovered North Korea claimed they were mining for coal and as it was actually granite to support their story they'd painted the tunnels black to look like coal - it sounds so odd I wasn't sure whether it was propaganda or not and I'm still not sure!