The most visited of the tunnel sites, this small, renovated section is near the village of Ben Dinh, about 50km from HCMC. In one of the classrooms at the visitors centre a large map shows the extent of the network while another shows cross-section diagrams of the tunnels. The section of the tunnel system presently open to visitors is a few hundred metres south of the visitors centre. It snakes up and down through various chambers along its 50m length.

The tunnels are about 1.2m high and 80cm across, and are unlit. Some travellers find them too claustrophobic for comfort. A knocked-out M-41 tank and a bomb crater are near the exit, which is in a reforested eucalyptus grove.

Be warned that this site tends to get crowded and you can feel like you’re on a tourist conveyor belt most days.