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Geology, conservation and culture: Vietnam

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June 2026 - 11 days

Register for 2026 now at tours@newscientist.com and we will contact you later this year with confirmed tour details.


Discover the geology and stunning landscapes of Vietnam in this fascinating tour from Hanoi to Hoi An. Experience tropical jungles, limestone caves, blissful villages and amazing feats of underground engineering. Immerse yourself in local culture and sample Vietnamese cuisine, ranging from street food to dining like royalty. 

The geology of Vietnam, particularly from Hanoi to Hoi An, presents a striking array of landscapes shaped by millions of years of tectonic activity, erosion, and sedimentation. The journey showcases some of Southeast Asia's most intriguing geological features, from the limestone karsts of the north to the coastal plains and mountain ranges in the central regions.

Unearth Vietnam's rich biodiversity and geological wonders, visit Cuc Phuong National Park's Save Vietnam Center, where conservation efforts protect endangered species like pangolins and civets. Explore the Ninh Binh valley’s unique limestone karsts and the Tam Coc grottoes, cruise through Ha Long Bay, a UNESCO World Heritage Site shaped by 300 million years of geological processes, including stunning cave formations like Thien Canh Son.

This tour is a perfect introduction to this vibrant country and is suited for those with an interest in geology, wildlife and culture. 

In partnership with Intrepid Travel.


DAY 1: ARRIVE IN HANOI

Welcome to Vietnam! Check into the Leah Silk Hotel. Hanoi is famous for its beautiful lakes, shaded boulevards, verdant public parks and its thriving Old Quarter. The latter is a veritable architectural museum piece, with blocks of ochre buildings retaining the air of a 1930s provincial French town. In the evening, you will have a welcome dinner at the hotel with fellow guests where the tour leader will brief you on the tour ahead.

DAY 2: CUC PHUONG NATIONAL PARK

After enjoying breakfast at the hotel, you will head to Cuc Phuong National Park, about a 3-hour drive away. Here, you will visit the Endangered Primate Rescue Center, where they focus on the conservation of gibbons and langurs. You will have a chance to see how the staff feed them, study their behaviour and prepare them for full release into the wild.

After checking into the Cuc Phuong Resort, you will transfer by car to the Save Vietnam Center to meet conservation staff and observe how they protect and feed pangolins, civets and otters. This rescue centre is one part of the worldwide effort to save endangered primates from extinction through poaching and loss of habitat. The entry fee (included in the tour price) helps fund their work, which includes rehabilitation, reintroduction, research and conservation education. This is followed by a late dinner just inside the national park’s gates.

DAY 3: ENDANGERED PRIMATES AND STUNNING LANDSCAPE OF NINH BINH 

After waking to the sounds of the jungle you will take a short guided trek in the forest, then drive to the town of Ninh Binh. You will take lunch in a traditional Vietnamese restaurant, then transfer to Tam Coc pier where you will take a boat up the river. While gliding along the Ngo Dong river among the rice paddies and karst limestone mountains, you will visit the Tam Coc grottoes, part of an exquisite cave system with ceilings just 2 metres high, eroded through the limestone hills.

In the late afternoon, when it is a little cooler, you will visit the misnamed Mua cave whose main attraction is two karst mountains with 500 steps each that afford amazing views of the Ninh Binh landscape of beautiful, forested limestone pillars, calm river, pristine rice fields and local villages.

Overnight you will stay at the luxurious Ninh Binh Hidden Charm Hotel & Resort.

DAY 4: CRUISING HA LONG BAY

In the morning you will transfer to Ha Long City wharf, where your cruise will begin at midday aboard the small but luxurious Athena Luxury Cruise ship.

Ha Long bay was designated a UNESCO World Heritage Site in 1994 and according to geologists, the Ha long Bay you see now has been in the making for 300 million years. Centuries of erosion from the rain and sea have shaped the karsts, valleys and caves that make this incredible landscape. The cruise stops at “Bo Nau” cave (Pelican Cave), the core area of the world’s natural heritage. Transferring by tender to “Sung Sot” Cave (Surprising cave) – the biggest and the most beautiful cave in Halong Bay. Leaving Surprising cave, keep moving by tender to the Titov island was named by Uncle Ho, after Gherman Stepanovich Titov – the Soviet astronaut who visited in 1962. Time for swimming, relaxing on the beach or climbing the steps of the Rock to the top of the island.

In the evening, a fusion set menu will be served to warm up your stomach after a long active day. Evenings are beautiful on Halong Bay, and just because the sun goes down, it doesn’t mean the night is over. Relax on the top deck or join the squid fishing.

Please note the itinerary is subject to change due to the weather, tide level and operating conditions without prior notice.

DAY 5: CRUISE TO THEN EXPLORE THE OLD QUARTER OF HANOI

Enjoy a Tai Chi session on the sundeck in the morning with a light breakfast of tea, coffee and pastries. After breakfast, Visit “Luon” cave – one of the caves open to the form beautiful endemic then vegetation of Halong Bay. You can either choose to go kayaking for free or join a traditional woven (bamboo) boat rowed by a local boatman (public ticket 50.000Ä‘/person).

Afterwards, you will go back to Athena cruise, relax and pack your luggage to be ready for check out. Enjoy your time to sunbathe and relax in the fascinating background of the bay. After a delicious brunch and farewell from the crew, you will be transported back to Hanoi and check in again to the La Siesta Premium Hang Be Hotel. 

The leader will pick you up in the early evening. You will have a walk through the Old Quarter and then stop at the local restaurant for ‘Bún Chả’ – Hanoi’s specialty. Your last stop of the day will be the Hanoi railway tracks. Where houses are often located just meters away from the tracks yet still retain their beauty.

After a long day, you will finish with evening beers at famous Bia Hoi Corner, where you will taste local freshly brewed beer.

DAY 6: HANOI TO DONG HOI

This morning, you will meet your guide around 7am and head towards Hoan Kiem Lake. It is common in Vietnam to wake up very early and start the morning with some exercise, and you will see several groups of people practicing tai chi and aerobics. Be part of Vietnam and join the locals in their morning routine! 

After visiting the Ngoc Son Temple, located in the middle of Hoan Kiem Lake, you will try Vietnam’s traditional local coffee and street food. Later, you will get deep into Hanoi’s Old Quarter with a walking tour where you will be able to spot the French architecture of different Vietnamese buildings, including St Joseph's Cathedral and Hoa Lo Prison. To finish your morning, you will visit Huu Tiep Lake, better known as "B-52 lake", owing to the US B-52 bomber wreckage.

You will then take a short flight to Dong Hoi on the north coast, followed by a short drive to the Phong Nha Lake House Resort. The area is renowned for its enormous caves, karsts and jungle-clad mountains leading to an extraordinary ambiance.

DAY 7: THIEN DUONG CAVE DISCOVERY

After a very early morning pick-up, you will head to Tan Hoa, located 70 kilometres away. The drive is beautiful, passing alongside jungle, fields and over the historic Da Deo Pass.

Head to Phong Nha – Ke Bang National Park. You will take the boat trip along Son river to reach Tien Son Cave that normally called as the Dry Cave. Discovered in 1935 by a local inhabitant by accident, Tien Son Cave is one the of most spectacular caves in Phong Nha Ke Bang National Park. Then you will go back on the boat to admire Phong Nha Cave AKA Water Cave. Phong Nha has been The World Heritage Sites of Quang Binh province since 2003. The cave is well-known for its fame as the oldest Karst Mountain in Asia which formed around 400 million years ago with the longest underground river system of 8km length and 50 meters height. After lunch, continue exploring Paradise Cave which was discovered by a local man in 2005 and the first 5 kilometres of this cave was explored by explorers from British Cave Research Association in 2005, the whole 31 kilometres was explored and publicly announced by the British cave explorers. This cave is 31 kilometres long, longer than Phong Nha Cave which had been considered the longest cave in this national park.

For those seeking a bit more adventure, there is an alternative activity (additional fee required) to join the Tu Lan experience where you will enjoy an action-packed day to discover the magnificent caves of the Tu Lan cave system, including trekking, climbing, swimming and picnic lunch by a waterfall. Drive to the Oxalis Adventure office in Tan Hoa, located 70 kilometres from Phong Nha. Here you will have a tour safety briefing, sign the release form and receive the required equipment for the tour. The trek starts after the briefing with a flat path past peanut fields and grazing buffalo and cows. A river crossing leads to a 60 metres rocky uphill section. Here you will visit Little Rat Cave with numerous unique challenges and opportunities to capture wonderful photos await. Pass through the cave exit and drop downhill into the Rat Waterfall, where you will have lunch, and lots of time to swim in the wilderness.

Afterwards, head back to Phong Nha for a well-earned rest after this amazing day.

DAY 8: KEY SITES OF THE VIETNAM WAR

The day starts with the Vinh Moc tunnel complex that sheltered 60 families from intensive bombing in the Vietnam war without any loss of life. Be guided through the tunnels and gain insight into this feat of engineering and human resilience.

Then it is onto the Hien Luong Bridge over the Ben Hai river in the middle of the DMZ (demilitarized zone). The river was the only true physical demarcation between North and South Vietnam during the Vietnam war.

After midday, you will visit the Quang Tri Citadel, a military bastion and an administrative head office of Nguyen Dynasty in Quang Tri province from 1809 to 1945. In 1972, the Citadel came under intense attack from American forces for 81 days but managed to remain in Vietnamese hands.

After lunch near the Citadel, you will transfer to Hue and check into the Pilgrimage Village Hotel for two nights.

DAY 9: DISCOVER HUE THE AUTHENTIC WAY

Hue is the ancient capital, a centre of arts and religion in Vietnam, plus a significant battlefield of the Vietnam war. You will get a taste of what life is like here today with local guides who grew up here. Hear stories of their childhood, their families and their experience of the war. If available, you will receive a blessing from the monks at Thien Mu Temple. Continue along the calming Perfume river by boat, see and experience the famous bronze factories of Phuong Duc, have a local lunch in a local restaurant.

In the evening, we will have dinner with the local family. This is the great chance for you to enjoy the local specialities made by home chef and hear the story about their daily live. Spend time learning about her family’s past and taste the authentic dishes. A huge step away from the well-known street food culture of Vietnam, it will give you the chance to not only taste some special dishes but also have the perfect dinner host for the occasion. 

DAY 10: LANG CO LAGOON AND HOI AN

Today you will travel to Hoi An via Lang Co lagoon. The Hai Van Pass mountains form an important tropical rainforest with rare species such as the Annamite rabbit, the antelope-like saola and the douc langur.

Upon arrival in Hoi An, you will check into the Anantara Hoi An Resort for two nights, then explore this World Heritage Site on a guided walking tour. Hoi An was a major international trading port during the 17th, 18th and 19th centuries. Today, parts of the beautifully preserved town retain the feel of centuries past.

Enjoy a farewell dinner in Hoi An with the group.

DAY 11: DEPART HOI AN

After breakfast at the hotel, you will say goodbye to Hoi An. There will be a group transfer to the airport. Alternatively, there is the option to extend your time in Vietnam if you wish. Please speak to the Intrepid Travel team for suggestions. 

Contact an expert to book or discuss this tour.

Register for 2026

Highlights

  • Discover Vietnam's historic cities of Hanoi and Hue
  • Enjoy serene natural landscapes, forests, karst mountains, villages and temples
  • Visit the Endangered Primate Rescue Center and the Save Vietnam Center
  • Cruise around the serene and geologically significant Ha Long Bay
  • Spend time exploring Cuc Phuong National Park
  • Learn about the feats of engineering and bravery during the Vietnam war
  • Sample a wide variety of local cuisine
  • No single supplement
  • Maximum group size - 16 people

Meet the expert

Tour expert

To be confirmed.

Tour leader

A local Intrepid Travel tour leader will accompany this tour throughout. The best people to show you the heart of a destination are the ones that live there. Tour leaders are not only just travel experts, they will be your teacher, travel guru and enthusiastic purveyor of grassroots experiences.

During visits to the various reserves, national parks, institutes and on the boat trips, you will meet and have talks from local naturalists, biologists and geology experts.

WHAT'S INCLUDED

  • All accommodations (hotels and boat) in a twin share basis
  • 10 breakfasts, six lunches and five dinners
  • Tour leader accompanying the entire tour plus local guides and experts
  • All internal transport (road, river and air) as outlined
  • Arrival/departure group airport transfers for those on the suggested group flights
  • All entrance fees

WHAT'S NOT INCLUDED

  • Travel insurance
  • International flights
  • Private arrival/departure transfers for those on different flights to the suggested group flight option
  • Visa/ETA (if applicable)
  • Gratuities for local guides, drivers and porters

HOW TO GET THERE

The tour begins in Hanoi and ends in Hoi An. Please speak to Intrepid Travel, who can offer flight advice and book flights for those travelling from the UK.

PACE AND PHYSICALITY

On many of the days there will be trekking and occasionally getting in and out of boats. You must be comfortable being on foot, wear appropriate clothing and have a reasonable level of fitness. For example, being able to walk for a few hours on uneven terrain. 

For the trek on day 7 our trekking partner will provide caving and safety gear (caving helmet, caving headlight, gloves); basic canvas trekking boots (only if you do not have your own pair); water; picnic lunch; professional English-speaking tour guide and safety assistants; porters; shared dry box for phones and small cameras (limited availability for larger cameras); eco-friendly compost toilet using western toilet seat at lunch site; first aid kit and rescue equipment.

For the optional Hang Tien expedition on day 7, there is 8 kilometres of trekking, 1.5 kilometres in the caves and 300 metres of elevation gain on steep, rocky ascents. You will be assisted all the way by trek guides. While not too strenuous, if you are over 65, you will need to fill out a form prior to departure that demonstrates that you are above average fitness for your age. This is so the local supplier can assess your suitability. If they do not feel you are able to undertake the Hang Tien visit, they will arrange for you to enjoy a less strenuous visit to the Tu Lan cave network. As with all the tour activities, none are mandatory. You must be at least 16 years old.

You will need to bring long, easy-to-dry trousers; a long-sleeved shirt; your own trekking boots for the dry part of the trek; calf-length, densely woven socks; a change of clothes for after the tour and a medium-size backpack for your water bottle, personal belongings, mosquito repellent and provided caving helmet.

SOLO TRAVELLERS

All of our tours, cruises, expeditions and weekenders are perfect for solo travellers. For this tour, there is no single supplement for those wanting their own room. 

Accommodation

Leah Silk Hotel, Hanoi

This stylish hotel is located in Hanoi’s Old Quarter. You will be booked into deluxe rooms.

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Cuc Phuong Resort, Cuc Phuong National Park

Located on the edge of Cuc Phuong National Park, this spacious and peaceful resort hotel with natural grounds features a heated outdoor pool and spa.

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Ninh Binh Hidden Charm Hotel & Resort, Ninh Binh

A luxury holiday resort tucked away in the mountains of Ninh Binh province, the hotel offers breathtaking views of vast rice fields caressing the rolling limestone karsts. It is often likened to “Ha Long Bay on land”, offering a serene escape into nature’s tranquility.

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Athena Luxury Cruise Ship, Ha Long Bay

A small but stylish and luxurious 20-cabin ship, it is ideal for sailing through the wonders of Ha Long Bay and seeing up close the fascinating geological features of the bay. All cabins have a balcony and en-suite facilities.

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Phong Nha Lake House Eco Resort, Dong Hoi

This bungalow-style accommodation overlook the picturesque Dong Suon Lake. Its tropical gardens house a number of restaurants. 

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Pilgrimage Village Boutique Resort and Spa, Hue

Set among verdant green gardens and lily ponds in the countryside, yet close to the famous historical landmarks and the city of Hue, this relaxing resort has two pools, two restaurants, three bars and a multi-activity spa. 

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Anantara Hoi An Resort, Hoi An

A centrally located resort set in lush gardens and overlooking the scenic Thu Bon river, touches of French, Dutch, Chinese and Japanese cultures make up the distinct atmosphere of the resort. It is located within a kilometre of Hoi An Ancient Town, a UNESCO World Heritage Site.

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Please note: If required for reasons beyond our control, we reserve the right to substitute alternative accommodation of equal or higher quality or adapt the itinerary if required.

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