January
19.5°C ~ 67°F
19 days of rain
Crowds: Moderate
Phong Nha Cave
A boat trip along an underground river into a large limestone cave.
- Location
- Phong Nha
- Time needed
- 1.5 – 2 hours
- Entry fee
- 150,000 VND
- Best months
- Feb – Aug
Overview
Phong Nha Cave is the cave that gave the park its name. Visitors take a boat up the Son River to the cave mouth and then travel through large chambers with stalactites and rock formations.
The river caves can close when the water is high, so check with the ticket office before you plan around it.
Highlights
- Ride the boat on the Son River
- Enter the huge cave mouth
- See stalactites and rock formations
- Walk the shore section
Visitor information
| Opening hours | Daily, daytime; check at the ticket office |
|---|---|
| Entry fee | 150,000 VND entry plus about 55,000 VND for the boat |
| Time needed | 1.5 – 2 hours |
| Best time of day | Morning |
| Good for | Families, nature lovers |
| Accessibility | Boat boarding on steps |
| Facilities | Toilets, ticket office |
Prices and hours can change. Check the official source before you go.
Best time to visit
Weather in Phong Nha by month.
February
20.4°C ~ 69°F
16 days of rain
Crowds: Moderate
March
23.9°C ~ 75°F
15 days of rain
Crowds: Busy
April
27°C ~ 81°F
14 days of rain
Crowds: Busy
May
28.9°C ~ 84°F
18 days of rain
Crowds: Busy
June
30.6°C ~ 87°F
10 days of rain
Crowds: Moderate
July
29.7°C ~ 85°F
17 days of rain
Crowds: Busy
August
29.4°C ~ 85°F
17 days of rain
Crowds: Moderate
September
27.7°C ~ 82°F
23 days of rain
Crowds: Quiet
October
24.9°C ~ 77°F
27 days of rain
Crowds: Quiet
November
22.8°C ~ 73°F
24 days of rain
Crowds: Quiet
December
19.8°C ~ 68°F
22 days of rain
Crowds: Moderate
How to get there
- From Phong Nha centre
About 5 km from Phong Nha town; the boat dock is in the town.
- Phong Nha Cave
Tips before you go
- Check the water level before you go
- Bring cash
- Wear shoes with grip
- Go early for fewer queues
Location
Phong Nha town
More attractions in Phong Nha
FAQs
How much is Phong Nha Cave?
About 150,000 VND entry plus about 55,000 VND for the boat (2026 guides). Another guide lists a lower entry price, so confirm at the ticket office.
Is it closed in the rainy season?
It can close when the water is high; check with the ticket office.
How long does it take?
About 1.5 – 2 hrs.