We'll start early in the morning at 7:30 with a short vehicle drive out of Hue, and we cycle from Pha Tam Giang lagoon to Quang Tri Ancient Citadel. The bike routes are impressive, along the lagoon, pass sand dunes on the coats, thatched shelters, and fishing sampans on the west. Then we ride down to the coast, pedal along local beaches, seafood farms, and small colourful fishing boats. Stopping at the local beach, refresh with fresh fruits and cold drinks before we ride towards the ancient citadel of Quang Tri. We ride cross through the fields of vegetables, rice and nostalgic villages. Lunch en route. We arrive at the Quang Tri Citadel and spend a short time visiting its museum. The Second Battle of Quang Tri began on 28 June 1972. It lasted 81 days until 16 September 1972, when South Vietnam's Army of the Republic of Vietnam defeated the North Vietnamese People's Army of Vietnam at the ancient citadel of Quang Tri and recaptured most of Quang Tri Province. The battle destroyed almost the old fortress. Afterwards, we have a 30-minute transfer to Dong Ha City at Mine Action Visitor Center before checking in the hotel.

Commence today's tour early at 7:30 am with the authentic drive to historic Hien Luong Bridge- a bridge cross over Ben Hai River located in 17 parallel during Vietnam War. (Make a short visit to Gio Linh military cemetery on the way to Hien Luong bridge) The famous Ben Hai River was the boundary of North Vietnam and South Vietnam from 1954 until the war ended. Arrive at Hien Luong Bridge around 8:30 am, take a walk on the memorable bridge with a well-informed guide, and learn more about the Vietnam War in DMZ, Quang Tri. Stop and spend more time at Hien Luong Museum. Then we cycle to the famous Vinh Moc tunnels. The tunnels consist of kitchens, food storage, healthcare rooms, and bomb shelter. Around sixty families lived in the tunnels; as many as 17 children were born inside the tunnels. Ride along the tranquil Ben Hai River, stopping at Cua Tung beach, a little town with a lively fishing port and beautiful beach and stopping to admire the small town and nature landscapes from the long bridge. Then visit the fish market before we carry on the ride on the scenic coast to Vinh Moc tunnels. Enjoy a locally guided tour to explore these famous tunnels have many entrances inland and many gateways to the sea. The Vinh Moc living tunnels are often compared to Cu Chi fighting tunnels, which are smaller, humid and more complicated with more than 250 km. After lunch, we'll transfer to Dong Hoi's rural Dist where we cycle through rustic countryside along mountain hills and, forest jungles and along the sleepy river to Phong Nha.

The Phong Nha National Park is located in the central west of Ho Chi Minh trails close to Laos, and it is home to a rich diversity of flora and fauna. Phong Nha caves were recognized as a UNESCO World Heritage Site in 1993. Son Doong cave is one of the world's largest natural caves. Located near Laos–Vietnam border, Son Doong has an internal, fast-flowing underground river and the most significant cross-section of any cave worldwide.  However, Paradise Cave is one of the most beautiful Caves in Phong Nha for travellers to explore with a day trip. It's an incredible home to the 360-million-years-old rock formations, the 31km long, the longest and the most beautiful in Asia, the central province of Quang Binh. The countryside and surroundings in Phong Nha are fantastic. The small town and it's surroundings have some colonist buildings ring by limestone mountain ranges, lush foothill farms, rice paddies, rivers, and tiny villages make it more rustic and spectacular. We have a full-day guided tour to explore the most beautiful Caves of Paradise, Dark with zipline adventures to mud bathing, swimming. After breakfast, we travel by bus on Ho Chi Minh road to Paradise Cave, spend 3 hours exploring this cave, and travel by bus to a restaurant for lunch. After we take zip line cable to Dark Cave, then take mud bathing and enjoy swimming. Finally, we return to Phong Nha town on Ho Chi Minh road, through mountain ranges, valleys, and tropical rainforests. Dine with the team and stay one more night in the city.

After breakfast, have a private transfer to Dong Hoi. It depends on your own planned and the ways of travelling; by train or plane, you will be dropped off at your departure location in Dong Hoi as your planed. Tour End!