Depart your hotel at 7:00 A.M. to the Cu Chi. Spend 1.5 - 2 hours here exploring the massive tunnels system that consisted of many factories and underground villages, such as working area of the leaders of the Party Committee, the secret meeting room, the anti-A tunnel to avoid bombing, an anti-explosion room, the food and weapons bunker, secret trap, fighting wells, wells, the famous Hoang Cam stove, in whose hidden smoke-visitors will witness a creative invention. At noontime, arrive at the Cao Dai Temple (Holy See) to witness the ceremony. Listen to the history of this unique Vietnamese religion and learn how it becomes the third largest religion in Vietnam. Have lunch at local restaurant After the filling lunch, depart to Black Virgin Mountain. Take the cable to the main site of the mountain to visit the Ba Pagoda, Linh Son Thach Tu. The view is breathtaking, and you will be surrounded on both sides by mango trees and woodland flowers. Follow your guide to see how locals worship in their daily life.