To access this 2-million-year-old cave system, adventurous visitors must weave through giant stalagmites and stalactites along paths in large, high, dry caves.

In some other paths located below water level, they are forced to swim in cool underground rivers or overcome waterfalls to conquer a series of consecutive caves. Perhaps this is also the most interesting point of the journey, both a challenge for courage and perseverance, and a test of the climbing or swimming skills that tourists have carefully prepared before the trip.

The reward for the fatigue is a scene beyond human imagination: the soaring cave dome with cliffs bearing traces of erosion when the water level rises during the flood season, winding stone steps stretching underfoot or sparkling stalactites of various shapes and incredibly round "pearls"...

In this mysterious world , experts have discovered some new species that are extremely rare in nature. At the waterfalls that stretch up to 1km in Tu Lan cave, or in dry caves, if you are lucky, you can encounter strange white creatures that can only be found in this environment.

Source: https://www.vietnam.vn/