Phong Nha – Kẻ Bàng National Park

Park Karst park with caves and dense tropical forest

Limestone karst and an extensive cave network define Phong Nha-Ke Bang, a UNESCO site in central Vietnam. Cavers, boat‑tour guests and trekkers explore river caves, stalactite chambers and jungle trails.

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Phong Nha - Ke Bang National Park is a karst and cave landscape in central Vietnam noted for extensive limestone cave systems and subterranean rivers. The park is protected for its exceptional cave chambers, biodiversity and karst geomorphology.

Visitors access a range of caves by boat and foot, from river caves with guided boat trips to dry showcaves with walkways and lighting; the park contains some of the world’s largest caverns and complex subterranean passages. Above ground, rugged karst hills and patches of tropical forest offer additional trails and wildlife viewing opportunities.

The karst landscape developed over geological time by limestone dissolution; the park was established and later recognized by UNESCO for its outstanding karst features and cave systems. Caves in the park have been explored scientifically and developed for controlled visitor access.

Located in central Vietnam (Quang Binh province) near the border with Laos, the park occupies a belt of limestone hills and karst stretching inland from the coast and is accessed from provincial roads and regional towns.

  • UNESCO and cave scale: Inscribed as a UNESCO World Heritage Site for its extensive karst landscape and cave systems; the park contains some of the world's largest cave passages and underground rivers.

What to See #

  • Phong Nha cave: Phong Nha cave, a river cave with an internal passage used historically by local communities and open to visitors by boat along its underground waterway.
  • Son Doong and large caverns: Son Doong and other very large caverns that form part of the park's karst system, noted for immense chambers and subterranean ecosystems.
  • Paradise Cave and other showcaves: Paradise Cave and a number of show caves that have extensive dry passages and are accessible by prepared walkway routes.
Phong Nha – Kẻ Bàng National Park
17.5333, 106.1500

How to Get to Phong Nha – Kẻ Bàng National Park #

The park’s nearest city and transport hub is Dong Hoi (Quang Binh province) which has an airport and a mainline railway station. From Dong Hoi, Phong Nha-Ke Bang National Park lies to the northwest at roughly 40-50 km distance; regular tourist minibuses, private shuttles and motorbike hires run from Dong Hoi and from Phong Nha village to park entrances.

If you arrive by train or plane at Dong Hoi, go to the town of Phong Nha (the village serving the park) and use local shuttles, taxis or rented motorbikes to reach the park’s visitor areas and trailheads.

Tips for Visiting Phong Nha – Kẻ Bàng National Park #

  • Visit Phong Nha-Ke Bang during the park's dry season (late winter to spring) to reduce the chance of flooding and shuttle/cave closures; rainy months can force cancellations of boat-access cave tours.
  • Access most show caves from Phong Nha village/visitor center-book boat transfers and cave tickets in advance, especially for popular sites like Paradise Cave and the boat caves, to secure morning slots.
  • Most visitors focus on the headline caves; hire a local guide or join smaller specialty tours to explore lesser-visited karst trails, river-fed grottoes and biological highlights that sit off the main routes.
  • To avoid crowds at the main caves, take the earliest boat out from Phong Nha village or visit mid- to late-afternoon when tour groups have rotated out.

Best Time to Visit Phong Nha – Kẻ Bàng National Park #

Go during the park's dry season (roughly February-August) to avoid monsoon-related flooding and closures that limit cave access.

Dry season
February-August · approximately 20-33°C
Best time to explore caves, trek and take river/boat trips - trails and cave entrances are least affected by rain.
Wet/monsoon season
September-January · approximately 20-30°C
Heavy rains can flood rivers and cave approaches, causing closures and slippery, muddy trails.

Weather & Climate near Phong Nha – Kẻ Bàng National Park #

Climate

Phong Nha – Kẻ Bàng National Park's climate is classified as Humid Subtropical (Dry Winter) - Humid Subtropical (Dry Winter) climate with hot summers (peaking in June) and mild winters (coldest in January). Temperatures range from 14°C to 30°C. Heavy rainfall (2276 mm/year), wettest in September with a pronounced dry season.

Best Time to Visit
MarchAprilFebruary
Temperature & Rainfall
Temperature Range
41°
Warmest Month
Coldest Month
Monthly Conditions

January

January is the coolest month with highs of 21°C and lows of 14°C. Moderate rainfall (62 mm) and mostly overcast skies.

63 Good

Comfort

18°
Feels Like Cool
18°C
Temperature
14° 21°
87%
Humidity
Very Humid

Weather

62 mm
Rainfall
2.1 m/s
Wind
Calm
1.0
UV Index
High
11.1h daylight

February

February is mild with highs of 22°C and lows of 16°C. Moderate rainfall (45 mm) and mostly overcast skies.

75 Very Good

Comfort

19°
Feels Like Mild
19°C
Temperature
16° 22°
85%
Humidity
Very Humid

Weather

45 mm
Rainfall
2.4 m/s
Wind
Calm
1.3
UV Index
High
11.5h daylight

March

March is mild with highs of 26°C and lows of 18°C. Moderate rainfall (51 mm) and mostly overcast skies.

77 Very Good

Comfort

22°
Feels Like Mild
22°C
Temperature
18° 26°
82%
Humidity
Very Humid

Weather

51 mm
Rainfall
2.0 m/s
Wind
Calm
1.4
UV Index
High
11.9h daylight

April

April is warm with highs of 28°C and lows of 21°C. Regular rainfall (82 mm) and partly cloudy skies.

77 Very Good

Comfort

24°
Feels Like Warm
24°C
Temperature
21° 28°
79%
Humidity
Very Humid

Weather

82 mm
Rainfall
1.9 m/s
Wind
Calm
1.8
UV Index
Very High
12.4h daylight

May

May is warm with muggy conditions (dew point 23°C). Significant rainfall (168 mm) and mostly overcast skies.

67 Good

Comfort

26°
Feels Like Warm
26°C
Temperature
22° 29°
80%
Humidity
Very Humid

Weather

168 mm
Rainfall
2.1 m/s
Wind
Calm
2.1
UV Index
Extreme
12.8h daylight

June

June is the warmest month with muggy conditions (dew point 23°C). Significant rainfall (159 mm) and mostly overcast skies.

67 Good

Comfort

26°
Feels Like Warm
26°C
Temperature
23° 30°
81%
Humidity
Very Humid

Weather

159 mm
Rainfall
2.3 m/s
Wind
Calm
2.2
UV Index
Extreme
13.0h daylight

July

July is warm with muggy conditions (dew point 23°C). Heavy rain (329 mm) and mostly overcast skies.

65 Good

Comfort

26°
Feels Like Warm
26°C
Temperature
23° 29°
82%
Humidity
Very Humid

Weather

329 mm
Rainfall
2.4 m/s
Wind
Calm
2.2
UV Index
Extreme
12.9h daylight

August

August is warm with muggy conditions (dew point 23°C). Heavy rain (283 mm) and mostly overcast skies.

63 Good

Comfort

26°
Feels Like Warm
26°C
Temperature
22° 29°
85%
Humidity
Very Humid

Weather

283 mm
Rainfall
1.8 m/s
Wind
Calm
2.1
UV Index
Extreme
12.6h daylight

September

September is warm with muggy conditions (dew point 23°C). The wettest month with heavy rain (489 mm) and mostly overcast skies.

65 Good

Comfort

25°
Feels Like Warm
25°C
Temperature
22° 28°
87%
Humidity
Very Humid

Weather

489 mm
Rainfall
1.6 m/s
Wind
Calm
1.8
UV Index
Very High
12.1h daylight

October

October is mild with highs of 26°C and lows of 20°C. Heavy rain (341 mm) and mostly overcast skies.

65 Good

Comfort

23°
Feels Like Mild
23°C
Temperature
20° 26°
88%
Humidity
Very Humid

Weather

341 mm
Rainfall
1.4 m/s
Wind
Calm
1.3
UV Index
High
11.6h daylight

November

November is mild with highs of 24°C and lows of 17°C. Significant rainfall (182 mm) and mostly overcast skies.

67 Good

Comfort

20°
Feels Like Mild
20°C
Temperature
17° 24°
88%
Humidity
Very Humid

Weather

182 mm
Rainfall
2.0 m/s
Wind
Calm
1.1
UV Index
High
11.2h daylight

December

December is mild with highs of 22°C and lows of 15°C. Regular rainfall (85 mm) and mostly overcast skies.

69 Good

Comfort

18°
Feels Like Mild
18°C
Temperature
15° 22°
88%
Humidity
Very Humid

Weather

85 mm
Rainfall
2.1 m/s
Wind
Calm
0.9
UV Index
Moderate
11.0h daylight

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