クアンビン省

February to August is the best time. It is warm and mostly dry, and cave access is easy. September to December is the rainy season. Rivers rise, roads flood, and some caves close. The Son Doong expeditions run only in the dry season, usually from January to August.

There is no single event to plan around. Check cave opening and weather updates just before you travel.

• Hang Sơn Đoòng is the largest known cave in the world. It has a jungle inside and can only be visited on a multi-day guided expedition with a permit.
• Động Phong Nha is reached by boat on the Son River. The boat enters the cave and floats past large halls.
• Động Thiên Đường is a very long dry cave with a wooden path. Visitors walk about one kilometre among large rock formations.
• Động Tiên Sơn is a cave near Phong Nha with a short walk and a quiet feel.
• Tam Toa Church is a ruined church in Dong Hoi. It is one of the few buildings that survived the heavy bombing of the war.
• Hải đăng Nhật Lệ is a lighthouse at the mouth of the Nhat Le river in Dong Hoi.

• Son River boat to the cave: A slow boat ride leads into the cave under the cliffs.
• Cycle the Bong Lai valley: Ride past rice fields, water buffalo and small farms.
• Swim in a jungle pool: Some tours stop at a cool stream for swimming.
• Zipline and mud bath at Dark Cave: A short adventure with kayaking and a mud pool.
• Multi-day cave trek: For fit travellers, a guided trek through a big cave with camping inside. Book far in advance.

• Dark Cave: about 25 min from Phong Nha village. A cave with a zipline, kayaking and a mud pool.
• Botanical garden and hiking: forest trails within the national park, about 30 min from the village.
• Eight Ladies Cave: a war memorial cave on a highway pass, 1 hour from Phong Nha.
• Dong Hoi: about 1 hour from Phong Nha by road. A coastal city with beaches and seafood.
• Hue: about 4 hours by road or 3.5 hours by train from Dong Hoi. Combine it with an overnight stay.

• In the park: Phong Nha Ke Bang National Park holds the caves, jungle and villages.
• On the coast: Dong Hoi is the provincial capital, with the airport and station.
• South: Hue is the next major stop on the main route.
• North: Hà Tĩnh lies on the route towards Hanoi.

• By air: Dong Hoi Airport (VDH) has flights from Hanoi, Ho Chi Minh City and some other cities. Phong Nha village is about 45 to 60 km away, a drive of about 1 hour.
• By train: Dong Hoi station is on the main north–south railway. Trains from Hanoi take about 8 to 10 hours, and from Hue about 3 to 4 hours. Vietnam Railways
• By bus: Sleeper buses and minibuses run from Hanoi, Hue and Da Nang to Phong Nha and Dong Hoi.
• From Dong Hoi to Phong Nha: Taxi, shuttle or local bus takes about 1 hour.

• Cycling: Bicycles and electric bikes are good for the quiet roads around Phong Nha village and the Bong Lai valley.
• Motorbike: Popular for the park road, but wet roads can be slippery.
• Taxi and Grab: Limited in the village. Hotels arrange transfers and tour cars.
• Tours: Cave visits need a ticket and a boat, so most people book a day tour or a transfer at their hotel.

• Is a car worth it? A car with a driver helps with the distance between Dong Hoi, Phong Nha and the caves. In the village, bikes are enough.
• Parking: Cave car parks are free or low cost. Check opening hours.
• Restrictions: Mountain roads can flood in the rainy season. Drive carefully near streams.

Phong Nha is a small village, and most food is simple Vietnamese: rice, noodles, river fish and forest vegetables. Guesthouses and small restaurants serve home-style meals. Dong Hoi is the place for seafood and fish dishes.

Eat in the family restaurants along the main street of Phong Nha village. In Dong Hoi, look for the seafood places near the beach and the fish sauce stalls in Bao Ninh.

Quang Binh is safe, but the caves and the weather need respect.

• Caves can close in rain because of rising water. Follow the guides' instructions.
• Roads and bridges can flood in the wet season, mainly from September to December.
• Wear good shoes for cave walks and mud. Bring a head torch for trekking.
• Unexploded bombs from the war remain in some forest areas. Stay on marked paths and tours.
• Mosquitoes are common near rivers. Use repellent.

The region was heavily bombed during the war because the Ho Chi Minh trail passed through the mountains. Many villagers lived in the caves for safety, and the caves were used as hospitals and storage. Tam Toa Church in Dong Hoi was damaged in these years.

The caves were barely known to outsiders until the 1990s. Hang Sơn Đoòng was found by a local man in 1991 and was explored by a British team in 2009. UNESCO listed the national park in 2003.

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