Depart early for a fantastic day to explore Cu Chi tunnels and the incredible Cao Dai religion so that you can be at Cao Dai Temple before the followers attending noon mass. After breakfast, be met at the hotel and travel by car to Cu Chi tunnel, the famous underground tunnel network located outside Saigon. The tunnels of Cu Chi are an immense network and were used for hiding and fighting during combat and served as communication and supply routes, hospitals, food and weapon caches, and living quarters for numerous North Vietnamese fighters. The tunnel systems were important to the Viet Cong in their resistance to American forces and helped counter the growing American military effort. Arrive around 9:00 am, watch a documentary film, then explore the renowned fighting tunnels on foot, traps, bunkers, trenches and experience crawling a piece of the underground tunnels. Then continues your journey to Cao Dai to Tay Ninh where you attend noon mass at the beautiful temple. Cao Dai is an indigenous religion encompassing Buddhism, Christianity, Confucianism, Hinduism, Islam, and Taoism. Followers of the religion hold several documents as holy, and they have to wear the long dress at noon to pray. This belief practice began in 1921 when a man received a vision of the Divine Eye, a powerful symbol of Cao Daism. Most followers are white at noon mass, and the pope, archbishop, cardinal, and priest are colourful. After watching the noon mass, you will have a chance to take plenty of photos before you enjoy lunch at one of the famous local restaurants. Then return to Saigon by vehicle in the afternoon.