In the morning, we will pick you up in the hotel lobby and start the trip by visiting the most highlights of the city, including Notre Dame Cathedral, the historic Central Post Office, Reunification Palace, and War Remnants Museum. With our knowledgeable tour guide, you will learn more about this interesting city. After having lunch in a local restaurant, we will head to Chi Tunnels, 60km far from city center. This network of over 200km of tunnels became legendary when they played a vital role in the War. In their heyday, the tunnels were functioning underground cities including numerous trap doors, specially constructed living areas, storage facilities, weapons factories, field hospitals, command centers & kitchens. You will spend the next hour exploring the tunnels. Afterwards, enjoy tea, cassava (guerrilla‟s food during the war). We will return to Sai Gon in late afternoon