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Tunnels in South Korea

10 tunnels in South Korea, ranked by size. Data from Wikidata and Wikipedia.

  1. Yulhyeon Tunnel 50 km
  2. Jungnyeong Tunnel 5 km
  3. Busan-Geoje Fixed Link 2 km
  4. Third Tunnel of Aggression 2 km
  5. Buramsan Tunnel
  6. Gwangam Tunnel
  7. Japan–Korea Undersea Tunnel
  8. Jeju Undersea Tunnel
  9. Suraksan Tunnel
  10. Tongyeong Undersea Tunnel

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