The mysterious underground primeval forest

Son Doong is the largest cave on the planet with a total length of nearly 9km, a large cave dome that is over 200m high, over 150m wide, and a total volume of about 38.5 million m3. In addition to its enormous size, this cave is also special because it contains its own ecosystem with a primeval forest formed when light passes through sinkholes, underground rivers, new species of creatures, and a beautiful stalactite system... (Photo: Oxalis Adventure).

Son Doong Cave has two natural sinkholes that allow light to shine down into the cave. Sinkhole 1 is called Watch Out for Dinosaurs. This is the area where the cave ceiling has collapsed, creating a skylight leading to the outside. The height from the mouth of the hole to the lowest point of the sinkhole is about 450m. On sunny days, from about 11am to about 1pm, this sinkhole lets light shine deep into the cave, illuminating the entire large cave ceiling. The sunlight combined with the mist created by the waterfall creates a unique, magical scene. (Photo: Oxalis Adventure).

Sinkhole 2, called Garden of Edam, is located about 1km away from Sinkhole 1. This sinkhole has a depth of 252m from the mouth to the bottom of the cave. (Photo: Oxalis Adventure).

The Garden of Edam sinkhole looks like a giant well from above. What makes this sinkhole special is that it contains a primeval forest at the bottom, right inside Son Doong Cave. (Photo: Oxalis Adventure).

According to the explorers, due to the sufficient sunlight from outside, along with the amount of fertilizer from bat guano, bird droppings, etc., the vegetation at the bottom of this sinkhole has developed. (Photo: Oxalis Adventure).

Due to the nature of the forest located deep underground, the trees often have small trunks but are very tall (some trees are up to 40-50m tall while the trunk diameter is much smaller than other trees of the same species). (Photo: Oxalis Adventure).

In less light areas, the flora is mainly mosses and ferns. (Photo: Oxalis Adventure).

In addition to the diversity of plants, in the “Garden of Eden” there are also some animals such as birds, flying squirrels, snakes, spiders, butterflies… or monkeys coming down to look for food. (Photo: Oxalis Adventure).

From the bottom of the sinkhole, visitors can see the starry sky on clear nights or the clouds drifting over the "Garden of Eden" in the early morning. Or the waterfalls flowing down from the cave roof on days of heavy rain. (Photo: Oxalis Adventure).

Source: https://suckhoedoisong.vn/khu-rung-nguyen-sinh-day-bi-an-duoi-long-dat-169250807081828295.htm