Tue 11 Oct 2022, Day 29/61. 3/5. We were taken underground & walked along 1 of 4 tunnels created to invade the South. This incomplete 3rd tunnel was discovered in 1978, 73m below ground, already extending 435m into the southern half of the DMZ, 44 km from Seoul.
Photo of tunnel: © 2017 OnedayKorea,
https://www.seoulkoreatour.net/places/korea-1/attraction/the-3rd-infiltration-tunnel/
My journey to Korea 