Vịnh Mốc tunnels turned out to be worthwhile to visit, and easy enough too! The Phong Nha Farmstay organized a regular mini bus service with the Hue Backpackers that does a stop at the Vịnh Mốc tunnels and Bến Hải River Museum. It is the best way to go between Phong Nha and Hue.
The villagers dug tunnels and trenches in order to protect themselves from the American carpet bombings. The Americans wanted to scare the villagers and force them to leave the area as they were supplying the North Vietnamese Army’s garrison on Con Co island. The Americans were interested in that parcel of land because the garrison was hindering the bombers on the way to Hanoi.
The tunnels were a success as they limited the loss of life to the villagers. Babies were born in the tunnels. The villagers continued their farming despite the bombings. Each family only had a 2 square meter room for their living. There were wells with clean drinking water in the complex, one shared washroom, along with medical and maternity ward, a multi-purpose hall used for school, village meetings, dining.