Located in Quang Binh Province, Phong Nha – Ke Bang National Park is widely known as the “Kingdom of Caves” in Vietnam. Home to hundreds of caves of all sizes, this UNESCO World Heritage Site attracts travelers from around the world with its dramatic landscapes, underground rivers, and pristine nature.
Among the most remarkable cave experiences here are Phong Nha Cave, the most iconic and accessible cave in the region, and Hang Chi Huy, a lesser-known but fascinating cave that appeals to travelers seeking tranquility and authentic exploration. Together, they offer two very different yet complementary perspectives of Phong Nha’s underground wonders.

Phong Nha Cave is one of the most famous caves in Vietnam and the first to put Phong Nha on the global tourism map. Discovered centuries ago and officially explored in modern times, the cave is renowned for its long underground river, impressive stalactites, and vast chambers.
Visitors begin their journey by boat along the Son River, gliding through emerald-green water before entering the cave’s mouth. Inside, the temperature remains cool and pleasant year-round, making it an ideal destination in any season.
Phong Nha Cave is often praised for its poetic beauty, with highlights such as:
The underground river system stretching over 7 kilometers
Magnificent rock formations shaped over millions of years
Natural light reflecting on limestone walls, creating a magical atmosphere
Thanks to its easy access and gentle exploration route, Phong Nha Cave is suitable for all ages, including families and first-time visitors. It perfectly represents the harmony between nature, water, and stone that defines Phong Nha – Ke Bang.

Unlike most caves known purely for their beauty, Hang Chi Huy carries profound historical significance. During the resistance war, this cave was used as a command and logistics shelter, serving as a safe haven for officers, soldiers, and vital supplies.
The name “Chi Huy” itself reflects its role as a command center, where important decisions were made under the protection of thick limestone walls. Hidden deep within the forest and naturally fortified, the cave provided ideal conditions for communication, medical support, and storage during times of intense bombing.
Today, traces of human presence still remain, allowing visitors to imagine the difficult yet determined life of those who once took shelter inside. Visiting Hang Chi Huy is not just an exploration of a cave, but a journey into Vietnam’s historical memory.

Experiencing both caves allows travelers to see two sides of Phong Nha – Ke Bang. Phong Nha Cave showcases the grandeur and elegance of nature, while Hang Chi Huy reveals its raw, untouched character.
This combination is perfect for visitors who want:
Whether you are a leisure traveler, a photographer, or a nature enthusiast, these two caves together create a well-rounded and memorable journey.
The best time to visit Phong Nha is from January to August, when the weather is dry and the rivers are calm.
Always choose licensed local guides when exploring lesser-known caves like Hang Chi Huy.
Stay near Phong Nha village to easily access caves, rivers, and other attractions.
Phong Nha Cave and Hang Chi Huy represent the perfect blend of iconic beauty and hidden adventure in Phong Nha – Ke Bang National Park. From the serene boat ride into Phong Nha Cave to the quiet, mysterious charm of Hang Chi Huy, each experience adds a unique chapter to your journey.
If you are planning a trip to Phong Nha, make sure to include both destinations to fully appreciate why this land is celebrated as one of the world’s most extraordinary cave regions.
