Dong Nai tourism not only has famous tourist areas, fruit orchards but also has a place that attracts those who are passionate about traveling – Dong Nai lava cave.
If you are looking for an entertainment and entertainment place near Saigon on weekends, Dong Nai is always on the top priority list. From Saigon to Dong Nai only about 30km, so many tourists often choose to come to Dong Nai for relaxation and relaxation. In recent years, scientists have researched and discovered a cave called Dong Nai lava cave , located in the longest caves in Southeast Asia present in Vietnam. Join the Vietnam Travelers in this cave to see if there is anything mysterious!
Information about Dong Nai lava cave
In 2014, scientists at the Institute of Tropical Biology Vietnam and the Cave of the Berlin of the Federal Republic of Germany has surveyed cave system in Dong Nai and discovered cave lava Dong Nai or also known as the bat cave, rated as one of the longest caves in Southeast Asia. The system of the 5 longest lava caves in Southeast Asia are all located in Vietnam, including 3 caves in Dak Nong and 2 caves in Dong Nai.
Lava cave is located in Tan Phu district and Dinh Quan district, Dong Nai province. According to research and findings, there are 11 caves with a length of 1.8km; most of them are located in Phu Tan and Phu Loi communes, Dinh Quan district. Visiting Dinh Quan now has an interesting place to experience for visitors, especially for those who are passionate about trekking travel. Lava caves were created during volcanic eruptions, lava caves forming inner tubular caves hundreds of years ago.
Dong Nai lava cave is located in the longest cave system in Southeast Asia
For the people who have lived here for a long time, because the cave has many bats, it is called the bat cave. The cave was formed by volcanic lava that erupted millions of years ago, forming faults and divided into two caves namely Doi 1 and Doi 2, between these two caves there is a section of about 10m broken due to rock inserted. into the. During the cooling of the lava , a hard crust is formed, the inside is still hot and this process creates tubular caves. 
The road map of the two caves is Bat 1 and Bat 2
The right time to explore the cave
Dong Nai has a temperate climate, so at any time of the year visitors can choose to trekking Dong Nai lava caves . You can visit Dong Nai from May to August, combining trekking while enjoying garden fruit.
Note because this is a trekking activity, so before planning your trip you should carefully consult the weather situation, avoid moving on rainy days, the road is difficult to go and the inside of the cave is quite humid. 
Go at a time when it doesn’t rain because the cave’s inside is quite humid
Explore inside Dong Nai lava cave
According to people living in the vicinity, said that Dong Nai lava cave existed before the southern liberation years in 1975, after the liberation, people started to reclaim the land. the cave system appears. However, when starting to explore inside, because the cave runs long underground, the deeper it gets, the less oxygen there is, no one dares to go deeper. Since an expedition came to measure and analyze, the lava cave is attracting more people to come.
The lava cave is attracting more people to explore
Inside the Dong Nai Doi cave area has an arc shape combined by seamless rocks, with the width of the cave about 10km, the height of 3 – 4m, there are lower sections that touch the head, so when inside, you must. Pay close attention to some paragraphs. Although it is estimated to be 3 – 4m in height, many experienced visitors say that the cave is still quite small and narrow, at the entrance of the cave only enough for one person to slip through. 
From outside the cave entrance looks quite narrow
The longest section inside the Dong Nai lava cave area is up to 426m long, unbroken, this is also the point that makes the cave one of the longest caves in Southeast Asia. Since being recognized as the longest cave in Southeast Asia, Dong Nai has propagated and protected the cave’s wild beauty, banned bat hunting for nature conservation.
Inside there are sections where people have to bend over to move
Note when exploring lava caves
To explore the bat cave, you need to equip yourself with a flashlight because the inside of the cave is quite dark, the deeper you go, the more dangerous, there are some sections where you need to be careful not to stumble.
There should be the direction and direction of the local people and should follow the group to avoid getting lost. Trekking activities should also ensure comfortable clothes, sturdy shoes for more confidence on your journey.
Outside the cave, many moss-covered sections are covered
Discovering Dong Nai lava cave is also considered a quite risky activity, so you should not go too deep inside, some dangers lurking like lack of oxygen, animals living in the cave. 
Don’t go too deep inside and should go in groups
Although not splendid and exploited like Phong Nha – Ke Bang cave or other caves, Dong Nai lava cave will be a tourist highlight in the future. The strange inside the cave is the main attraction for tourists stopping in Dong Nai, touching the cold lava layers. This is also the favor that nature gives to two mountainous districts of Dong Nai province, which need to be preserved and developed to create potentials in the future.
Photo: Internet