Exploring Thien Ha Cave: The Galaxy inside the Mountain and Dugout Boat Experience

Thien Ha Cave is located in Son Ha commune, Nho Quan district, Ninh Binh province, about 24km northwest of Ninh Binh city center. It belongs to the Trang An Landscape Complex – a UNESCO World Cultural and Natural Heritage site recognized since 2014. The cave lies hidden in the Tuong Mountain range (also known as Tuong Mountain), part of the Trang An limestone karst system, at an altitude of nearly 200m above sea level.

This location is not only geologically valuable but also deeply connected to national history. The Tuong Mountain range was once an "outpost watchtower" protecting the southwest of the Hoa Lu citadel under the reigns of Kings Dinh Tien Hoang and Le Dai Hanh (10th century). Nearby are historical relics such as the Le Dynasty Boat Quay, Phat Dau Son Mountain, and Dau Linh Field, creating a rich ecological tourism complex.

If you are in Hanoi, the distance to Thien Ha Cave is about 120km, easily accessible by motorbike or car in 2-3 hours. From Ho Chi Minh City, you can fly to Noi Bai Airport and then continue your journey.

Thien Ha Cave was discovered in 2007, after the cave entrance had been obscured by dense vegetation for centuries. The total length of the cave is about 700m, divided into two main parts: a 200m dry cave and a 500m water cave (also known as the wet cave). The dry cave section is a vast stone gallery with a myriad of stalactites and stalagmites in countless shapes, compared to a "stone castle" due to its magnificent beauty.

The water cave section is the true highlight, where an underground river winds through the cavern, reflecting light from pure white marble-like stalactites. When illuminated, the entire space sparkles like a galaxy in the universe, creating a mystical, pristine beauty. Geological experts from the US once surveyed and assessed that the stalactite system here is still "alive" and continuing to grow, setting it apart from many other caves in Ninh Binh.

In addition to its natural beauty, Thien Ha Cave also preserves traces of ancient culture. Archaeologists found mollusk shells, coarse pottery fragments, animal bones, and turtle shells, proving that this was once a dwelling place of ancient Vietnamese people during the Neolithic period. Hundreds of bats living in the cave help maintain the primitive ecosystem. The entire area is surrounded by primeval forests, majestic mountains, and the Ben Dang River, creating a harmonious natural picture.

To reach Thien Ha Cave, you need to depart from Muong Tho Ha boat wharf (Son Ha commune). From the center of Ninh Binh, follow National Highway 38B towards Nho Quan district, cross Vom Bridge, then turn right onto Provincial Road 438. The entire journey takes about 45 minutes by motorbike or car.

• At the wharf, buy your entrance ticket (reference price for 2025: 200,000 VND/person for the boat route, 150,000 VND/person for the partial walking route). 
• The journey begins with a boat ride along the Ben Dang River for about 1km, passing through a wild small canal with lush green mountain scenery. 
• Afterwards, the boat docks at the foot of Tuong Mountain, and you walk about 500m along a stone path by the edge of the forest to reach the cave entrance.

Tip: It is recommended to go in the early morning to avoid the heat, and choose a day with good weather. If traveling in a group, hire a local guide (around 100,000-200,000 VND/group) to hear historical stories and safety notices.

Before embarking on the journey to admire the magical beauty of the “galaxy inside the earth”, you will need some important tips to make your exploration of Thien Ha Cave as complete and smooth as possible. Below are the notes to help you be more proactive in your itinerary, timing, and how to experience this unique cave.

Rowing a dugout boat through the underground river

One of the most interesting experiences at Thien Ha Cave is rowing a dugout boat (a simple, hand-rowed wooden boat) through the water cave section. After exploring the dry cave on foot, you will board the boat to glide across the 500m-long underground river. The river water is clear and cool, reflecting the stalactites hanging like stars above.

The boats usually carry 4-6 people, rowed by local people, allowing you to relax and enjoy the scenery. Along the way, you will encounter strange rock formations like "Fairy Flower Island", "Mother's Breast", or "Fish turning into Dragon" – names given by tourists and locals based on their shapes. The boat ride takes about 30-45 minutes, bringing a sense of adventure like getting lost in a fairytale world.

Tip: Bring a waterproof camera or a phone with a protective case to take photos. Avoid touching the stalactites to preserve the heritage.

Exploring the dry cave and the water cave

The 200m-long dry cave section is where you walk through a vast stone gallery. Natural light filters through the cave mouth, illuminating the magnificent stalactites. A special feature is the "Heaven's Well" – where sunlight pours down from the top of the mountain, creating a shimmering halo effect.

Transitioning to the water cave, the air is cooler with higher humidity. The entire journey takes about 1-2 hours, depending on your pace. If you love adventure, you can combine this with the nearby Thien Thanh Cave – a smaller dry cave featuring "stone castle" beauty.

Exploring Thien Ha Cave is not only a journey to admire the "galaxy inside the mountain" but also an opportunity to experience the culture, history, and nature of Ninh Binh in a deep way. With the experience of rowing a dugout canoe through the underground river, you will bring home unforgettable memories.

More than just a geological wonder, Thien Ha is also a place that preserves deep historical and cultural relics. Choose the ideal time to fully enjoy the coolness and magical light of the cave. More importantly, please bring a sense of preservation to protect this pristine beauty for future generations. The journey to Thien Ha will surely be a brilliant memory, lingering forever in your mind.