This morning we will leave the city by private vehicle to visit the amazing tunnel network of Cu Chi. This incredible system, covering almost 250km in length was shelter to over 16,000 Vietcong guerrillas during the wars. Initially started in 1948 to against the French air and ground sweeps, the network were then served communication routes, storage facilities, hospitals and living quarters for Vietnamese fighters throughout American war. If interested in you can even descend into the tunnels to learn more about the harsh conditions faced by Vietcong guerrillas who lived here. Return to the city centre for lunch at a local restaurant. In the afternoon, you will visit Saigon including a visit to the old Saigon Post Office, Notre Dame Cathedral, the Reunification Palace, and War Museum. Overnight in Ho Chi Minh.