On the second day, immerse yourself in the local culture and explore the surrounding attractions near Thanh That Cao Dai Temple. Start your day by visiting the nearby Cao Dai Holy See, the headquarters of the Cao Dai religion. Here, you can witness the daily rituals and ceremonies performed by the Cao Dai followers. Afterward, head to the nearby Ba Den Mountain, a popular pilgrimage site for both Buddhists and Cao Dai followers. Take a cable car ride to the mountain's summit and enjoy panoramic views of the surrounding countryside. If you're feeling adventurous, you can also hike up the mountain. In the afternoon, visit the Cu Chi Tunnels, an underground network used by the Viet Cong during the Vietnam War. Explore the tunnels and learn about the history and resilience of the Vietnamese people. End the day with a traditional Vietnamese dinner and relax at your accommodation.