The concrete path is zigzag like the curves on the pass, except that this path leads visitors deep into the ground.

Carlsbad Caverns National Park is located in the Guadalupe Mountains, in the state of New Mexico, USA. This is a national park established in 1930 with an area of ​​18,926 hectares. The name of this national park is associated with a nearby town. When arriving at Carlsbad Caverns, visitors will visit more than 100 impressive caves formed in ancient times.

Among these, the entrance to the main cave is a steep, winding road. If you go down, space is completely dark and light seems to be swallowed, so this road is also known as “the road to hell”.

(Photo: thewanders)

According to Worldkings.org, this entire steep, winding road is more than 2 km long, deep, and the height from the door to the main cave alone is equivalent to a 75-story building. The walk takes about 60 to 90 minutes. This route is not suitable for people with respiratory problems or heart disease.

After going all the way, visitors will see the main cave below called Grand Canyon, a limestone stalactite form, dating from about 4 to 6 million years old.

The cave is formed from water rich in hydrogen sulfide mixed with rainwater and oxygen to form sulfuric acid that dissolves limestone. Thanks to that, it has created an outstanding, shimmering and sparkling scene inside the cave. There are also countless magical bottomless holes such as Giant Dome, Rock of Ages…

(Photo: NPS Photo/Peter Jones)

(Photo: Reddit)

At around 7:45 p.m. every evening, the bats residing inside will fly out of the cave to hunt for food. In the summer, there are about 200,000 – 500,000 bats residing in the cave, and the number can even reach 1 million bats during the migration season. While the national park has 119 different caves, only 3 caves are open to the public.

(Photo: rocdoctravel)

Inside this national park, there are 67 species of mammals residing, some rarely seen species such as: black bears, lizards, crocodiles… Besides, there are native animals of the national park such as: leopards. lions, warblers…

(Photo: Getty Images)

(Photo: amycarney)

The biodiversity of this site is also reflected in the habitat of 357 species of birds, 55 different species of reptiles and amphibians, 5 species of fish and more than 600 species of insects.