Puong Cave

Rod Waddington · CC BY-SA 2.0

A soaring karst through-cave where the Nang River cuts straight through the Lung Nham limestone massif.

Unlike caves that demand a climb, Puong is entered by boat, drifting straight into the mountain. The Nang River has bored clean through the Lung Nham limestone, leaving a vault so high that daylight survives only at either end. Inside the cool dark, the engine note comes back low and hollow while thousands of bats hang sleeping from the ceiling. Out the far side the river opens again into green forest and carries on toward Ba Be Lake — the finest stretch of river travel in Bac Kan.

Visitor information

When is the best time to visit Puong Cave?

April to November

How much does it cost to visit Puong Cave?

Included in the Ba Be boat fare

How long do you need at Puong Cave?

1 hour

What are the opening hours of Puong Cave?

07:00 - 17:00

Did you know

The cave sits inside Ba Be National Park, where the Nang River runs through the Lung Nham limestone.
It is a through-cave: boats pass straight along its length, no walking required.
Large bat colonies roost on the cave ceiling.
About 5km from the centre of Cho Ra.

Travel tips

Take the combined Ba Be Lake – Puong Cave – Dau Dang Waterfall boat route in one outing.
Bring a light jacket; the cave is noticeably colder than outside.

Source: https://vi.wikipedia.org/wiki/Động_Puông

Updated: 2026-08-05