Quang Tri (Phong Nha & the DMZ) Travel Guide
Central Coast · Vietnam
Quang Tri, on the north-central coast, holds two very different draws: the Phong Nha-Ke Bang National Park, a UNESCO site with some of the world's largest caves, and the former Demilitarized Zone (DMZ) of the Vietnam War, with tunnels, bases and memorials along the old 17th parallel.
Get a Vietnam eSIM for Quang Tri (Phong Nha & the DMZ)Best time to visit Quang Tri (Phong Nha & the DMZ)
How to get to Quang Tri (Phong Nha & the DMZ)
Getting around
Staying connected
Money & costs
Safety & emergencies
Top things to do in Quang Tri (Phong Nha & the DMZ)
- Phong Nha Cave by boat
- Paradise Cave (Thien Duong)
- Dark Cave zipline and mud bath
- Son Doong expeditions (the world's largest cave, permit only)
- The DMZ: Vinh Moc Tunnels
- Khe Sanh Combat Base and the old 17th parallel
- Cycle the Phong Nha countryside
Local tips
- Visit February–August — many caves close in the wet season
- Base in Phong Nha town for the caves, Dong Ha for the DMZ
- Book big caves ahead; Son Doong sells out a year out
- Never leave marked paths at battlefield sites
- Start early to beat the mid-year heat
Quang Tri (Phong Nha & the DMZ) travel FAQ
Where is Phong Nha and how do I get there?
Phong Nha-Ke Bang National Park is in Quang Tri province on the north-central coast. The easiest access is via Dong Hoi Airport (VDH) or the north–south train, then a short transfer to Phong Nha town.
When can you visit the Phong Nha caves?
Mainly February to August. In the wet season (September–December) river caves flood and many close, so plan around the dry months.
Can you visit the Vietnam War DMZ?
Yes — guided day tours from Dong Ha or Hue cover the Vinh Moc Tunnels, Khe Sanh and the old 17th parallel. Stay on marked paths, as unexploded ordnance remains in the region.
Do I need an eSIM here?
A travel eSIM helps because caves are booked and confirmed by message and the DMZ sites are spread out well beyond the towns.
What is the best time to visit Quang Tri (Phong Nha & the DMZ)?
February to August is the dry window and the only time many caves are open — the wet season (September–December) floods river caves and can close them. It gets very hot mid-year, so start early.
How do you get around Quang Tri (Phong Nha & the DMZ)?
Caves are visited on organised tours (some multi-day expeditions); around Phong Nha town, rent a bicycle or scooter. DMZ sites are spread along the highway and best seen on a guided day tour.
How much does it cost, and do you need cash in Quang Tri (Phong Nha & the DMZ)?
Vietnamese dong (VND). Cave tours are the main cost and are pre-booked; carry cash for Phong Nha's guesthouses, food and bike rental.
Is Quang Tri (Phong Nha & the DMZ) safe for tourists?
Stay on marked paths at former battlefields — unexploded ordnance remains a real hazard in parts of the region, so never wander off-trail. Follow guides on cave expeditions. Emergency numbers: 113 police, 114 fire, 115 ambulance.
Last updated 1 February 2026