Today, we will firstly visit the Great Holy See Temple, which is built in 1926 and considered one of the most striking structures in all of South-East Asia. Around midday, we will attend the ceremony's extravaganza to witness the daily mass held by the Cao Dai followers. After lunch, we will proceed to Cu Chi Tunnels to explore the amazing site where Viet Cong hid during the War. We will have a chance to watch a short introductory video showing how the tunnels were constructed before entering the tunnels. After that, we will spend 1 hour exploring the tunnels. Later, we could enjoy tea and cassava which is guerrilla's food in war time. In the afternoon we will return back to Sai Gon. Please refer to the "Departure and Return" for more detailed information.