This morning you will drive to Tay Ninh home to the Divine Eye, the official symbol of Cao Daism. Cao Dai followers worship Jesus Christ, Confucius, Taoism, and Buddha, and you will see the midday service. On the way back you will stop to visit the Cu Chi Tunnels. The tunnels consist of more than 200km of underground tunnels. This main axis system has many branches connecting to underground hideouts, shelters, and entrances to other tunnels. The network included innumerable trap doors, specially constructed living areas, storage facilities, weapons factories, field hospitals, command centers and kitchens. Today the remaining tunnels have become a major tourist attraction giving the visitor a unique experience and a feel of what underground life was like during the U.S.-Vietnam War. You will stay overnight in HCMC.