Cu Chi Tunnels are a network that were started in the 1940's & took 20 years to build. They were used during the war for soldiers to hide out. The bottom of the 3 levels is 30 meters underground.
Trap doors & bamboo spears anyone? (photo by CP)
This is one of the original holes used to enter the tunnel system. (photo by CP)
Our Vietnamese guide.
This is the entrance made for visitors who can't possibly go in the tiny 12" Vietnamese enterance :-). This is me going in, where I saw a tiny bat snuggling in for a day's rest. He was about 1' away from me.