Visit the Cao Dai Temple in Tay Ninh (120 km) where daily Mass is done by the Caodaism followers at noon. Cao Dai is a combination of Buddhism, Confucianism, Taoism, native Vietnamese spiritualism, Christianity and Islam. On the way back to Saigon, see the Ben Dinh tunnels in Cu Chi province.
... I've got wonderful holiday in Vietnam and thanks a lot for your support in the first part of my journey. For sure I will recommend your service in case some of my friends intend to come in Vietnam, Laos and Cambogia ...