Inside the cave, sharp and pointy stalactites hang down from the ceiling.
The Cha Loi Cave is about 30-100 m wide, and has an average height of 60 m with the highest point at about 90 m.
“I can feel the hot wind as the temperature in Dong Hoi is always 36-40 degrees Celsius. On the first day we went through the forest and climbed to the cave entrance at around 11 a.m, and it was sizzling hot outside. But inside the cave, it is the opposite, with the temperature not higher than 20 degrees Celsius," Long said.