Explore But Cave in Thung Nham: A Mysterious Water Cave in the Ecotourism Zone

But Cave is located within the Thung Nham Ecotourism Zone (also known as Thung Nham Bird Park), Hai Nham village, Ninh Hai commune, Hoa Lu district, Ninh Binh province. This area belongs to the core zone of the Trang An World Heritage Complex, about 12km west of Ninh Binh city center and only about 4-5km from Tam Coc – Bich Dong.

How to get there easily:

• From Hanoi: About 100-110km, taking 2-2.5 hours. Take the Phap Van – Cau Gie – Cao Bo – Mai Son expressway, then turn onto Highway QL38B or DT491C towards Tam Coc. After passing Tam Coc, follow the signs to Thung Nham.
• From Ninh Binh: Rent a motorbike (100k-200k VND/day), take a taxi, or motorbike taxi (xe om), taking about 20-30 minutes.
• On-site transport: Mainly by boat (included in the ticket price) to explore the bird park and But Cave.

Tip: Visit early in the morning or late in the afternoon to avoid the sun and crowds. Combine with Tam Coc and Trang An for an ideal 2-3 day tour.

But Cave is a water cave about 500m long, up to 70m wide at its broadest point, with a ceiling height of about 30-40m. A special feature: the cave has no artificial electric lighting system. Visitors and tour guides carry flashlights to explore, creating a genuine sense of adventure amid the mystical darkness.

As the boat gently glides on the emerald-green waters of the Ben Dang River, you will immediately be captivated by:

• The Stone Fairy lying on a jade bed with long flowing hair and a shimmering curtain.
• Buddha (Ông But) – a natural stalagmite in the shape of a kindly old man sitting by the underground river (this is the origin of the cave's name).
• A series of other fantastical shapes: a dragon's silk ribbon, kneeling elephants, a trellis of Tonkin creeper flowers, celestial peaches, sea snails, whales…
• Hundreds of bats residing here, proving the cave still retains its wild pristine state.

But Cave is likened to a "natural art museum" where active and inactive stalactites and stalagmites coexist, witnessing the geological process still taking place after millions of years.

The name But Cave is associated with a humane ancient legend, enriching the cultural and spiritual value of this location.

Ancient lore says that But Cave was once the sole path leading to a fertile valley. During years of crop failure and famine, villagers discovered the cave mouth but feared the darkness and danger. Until one day, a kindly old man with white hair and beard appeared, guiding them through the cave and bringing them to a safe promised land.

When the villagers returned to give thanks, the old man had vanished, leaving behind only an imposing stone statue identical in appearance to him. The villagers believed the old man was Buddha (But) descended to save the people, and from then on devotedly worshipped him and named the cavern But Cave.

Verses handed down inside the cave:

“A stone statue sitting here, 

An ancient lore passed down through years. 

Named kindly Old Buddha gentle and clear, 

To those who pray, blessings he yields.”

With this legend, But Cave is not only a geological wonder but also a spiritual space, offering a sense of peace and connecting humans with the scenic landscape of Ninh Binh.

The journey to explore But Cave is often combined with other famous attractions in the Thung Nham Ecotourism Zone, creating a seamless and unique experience route:

• Bird Park: Home to thousands of birds of various species, especially impressive in the late afternoon.
• Other caves: Vai Gioi Cave, Ba Co Cave, Tien Ca Cave.
• Ecological spots: Dong Chuong Lake, the moving banyan tree, Valley of Love, fruit orchards...

With its pristine beauty, unique water cave structure, and absolute serenity, But Cave is truly an unforgettable highlight on the journey to discover Ninh Binh, the "Inland Ha Long Bay".

But Cave is not merely a geological wonder, but also a symbol of pristine conservation in the heart of the Trang An World Heritage site. From its ongoing "living cave" geological formation and peaceful hand-rowed boat trip to the spiritual significance linked to Buddha, everything combines to offer a complete and unforgettable experience. But Cave is a sincere invitation to those seeking to escape urban clamor and return to a picturesque landscape, feeling the profound bond between rock, water, and ancient legend. If you visit Ninh Binh, be sure to combine your cave exploration with a Thung Nham Bird Park tour, allowing But Cave to immerse you in a mystical realm where natural beauty and spiritual belief shine together.