For tourists with limited time who still want to explore famous places, a combined tour of Ho Chi Minh City and the Cu Chi Tunnels in one day is ideal. In Ho Chi Minh City, you'll visit historical and cultural landmarks such as the Reunification Palace, Notre-Dame Cathedral Basilica of Saigon, Central Post Office, and Ben Thanh Market, offering a deep understanding of the city's history, culture, and daily life. The Cu Chi Tunnels, an underground system built by Vietnamese soldiers during the war against America, provide a vivid insight into the resilience and ingenuity of the Vietnamese people during the war.