The tunnels of Kim Long was constructed from 1962 to 1964 with the length of 2km through houses and fruit gardens with 12 gates. Inside the Tunnels, there are sufficiently fortified positions, meeting room, health station, food store, weapon store,...  Thanks to this base, the soldiers and guerillas could stay to operate, maintain, construct and develop Revolution movement and organized the fighting against the mopping-up and people gathering of America -Diem. The Tunnels of Kim Long was recognized by Ministry of Culture and Information as a national historical and cultural relic on 27/07/1994.  

Long Tan Holy Cross Stele was constructed by the Australian Roya Army on 18/08/1969 to commemorate the Austrahan soldiers who sacrificed in Southeast Battlefield in the mopping-up with the cooperation between Australian Army and Tan Tay Lan on 18/08/1966. The stele was constructed with reinforced concrete with simple Holy Cross but they bear a deep meaning of the history about the Vietnamese war. Thousands of veterans of Australia Royal Army vtsited this place to commemorate their companions in arms. On 16/11/1988, the Holy Cross Stele was recognized by the Ministry of Culture and lnformation as national historical relic.  

                      Commemoration House was the place with many memories about the childhood of Hero Vo Thi Sau which was constructed with typical traditional architecture of Vietnamese village and covered with wooden plates and roofed with Yin and Yang tiles and soil floor. In 1980, the house was upgraded by the People's Committee of Long Dat district (today known as Dat Do district) as it is today. About 100m away from the Commemoration House, there is the Statue of Vo Thi Sau. The statue is located within the park with many Adenium flower trees, magnolia trees and sapodilla trees. The Statue is made of copper with the height of 7 meters and designed by Artist Thanh Thanh to express the position that Sau was unhurried and indomitable to go to the execution ground with the laps of dress flying in the early morning's wind...