G Adventures
Save 20%Epic Southeast Asia: River Cruises & Karst Mountains
Vietnam, Laos, Cambodia, Thailand · 40 days · Moderate
fromCAD 3,935
Next: 21 JunThe adventure
Got 39 days? Perfect — that’s just enough time to soak up the best of Thailand, Cambodia, Vietnam, and Laos. Explore legendary temples like Angkor Wat, cruise buzzing cities, and trade stories with locals over street food that’ll ruin takeout forever. By day, chase waterfalls, bike ancient ruins, and hop night markets. By night, find yourself in a new bar, new karaoke joint, or dancing under the stars with your crew. This trip is big on history, culture, and good times — and even after more than a month on the road, you’ll still wish it didn’t have to end.
At a glance
Where you'll go
Day by day
Your journey through
Vietnam, Laos & 2 more countries
Day 1Arrival dayArrivalArrive at any time and welcome to Siem Reap, Cambodia! Tonight, meet your CEO and get to know fellow travellers as you cheers to new adventures.
Arrive at any time and welcome to Siem Reap, Cambodia! Tonight, meet your CEO and get to know fellow travellers as you cheers to new adventures.
Day 2Watch the sun rise over the majestic…Angkor Wat
Angkor WatWatch the sun rise over the majestic and mystifying ruins of Angkor Wat. Then, taste all manners of salty, sweet, spicy, and sour with a delicious Khmer meal at a restaurant kickstarted by our non-profit partner, Planeterra, or with a local family. Later, head to the infamous Pub Street, where the party goes round the clock. Grab a bite to eat (deep-fried tarantula, anyone?) and let the beats move you through market stalls and bars.
Day 3Travel to Phnom Penh
Travel to Phnom Penh, Cambodia’s busy capital nestled along the mighty Mekong River. Get your bearings on an orientation walk and spend the rest of the evening at leisure.
Day 4Spend the day diving deep into Phnom Penh's…
Spend the day diving deep into Phnom Penh's culture and history. Opt to reflect on one of Cambodia’s darkest periods with a visit to the Tuol Sleng Prison and the Killing Fields. Or venture to the Silver Pagoda or Royal Palace for a more peaceful experience. Later, discover the foodie side of this city on a street food crawl.
Day 5Ride in style to Sihanoukville and board…
Ride in style to Sihanoukville and board a boat to your own private beach on Koh Rong island. Take the afternoon to taste local seafood, or sit back and relax with a drink before hitting the warm waves.
Day 6Enjoy your last full day on this pristine island
Enjoy your last full day on this pristine island. Do anything you might have missed the day before, like fishing, hiking, or kayaking.
Day 7Head back to the mainland and journey…
Head back to the mainland and journey to Chambok Village where you’ll spend the night and get to know the local people over a delicious Cambodian home cooked meal. Immerse yourself in the community and wander around this remote region.
Day 8Cross the border into Vietnam
Cross the border into Vietnam, stopping in the famed Ho Chi Minh City where you'll spend the night at a popular backpackers hostel. Take this chance to visit the Ben Thanh Market for souvenirs and handicrafts before taking in the buzzing nightlife. Choose to venture to one of the many rooftop bars for a panoramic view and live music.
Day 9Feel the pulse of Vietnam’s biggest city…
Feel the pulse of Vietnam’s biggest city on a CEO-led orientation walk, with free time after to double back to your favourite spots. Shop 'til your heart's content, immerse yourself in local culture, or just wander the streets to take in the city's unique vibe. Tonight, catch up on sleep on an overnight train to Nha Trang.
Day 10You’ve arrived! Welcome to the eastern sea
You’ve arrived! Welcome to the eastern sea. Take this morning to explore local shops and markets, rejuvenate in a therapeutic mud bath, relax on the beach, or visit nearby historical sites before an evening street food crawl.
Day 11It’s not over yet
It’s not over yet. There’s more free time to explore Nha Trang today, so soak it all in. Then, hop on an overnight train to continue to Hoi An, stopping first in Da Nang for a short transfer.
Day 12Hoi An’s excited to meet you
Hoi An’s excited to meet you. See why on an orientation walk of the city before spending free time in the afternoon. Dig even deeper and choose between a cooking class, cycling to the beach, visiting a tailor, or exploring old town. Tonight's the night for your big night out, to reminisce about your favourite adventures so far. Then dance the night away!
Day 13Noodles might be fun to eat
Noodles might be fun to eat, but they’re even more fun to make. Find out how during a visit to G Adventures-supported Oodles of Noodles. The rest of the day is yours, so see what you can discover. Choose to visit the ancient ruins of My Son, a UNESCO World Heritage Site, or cruise down the Thu Bon River.
Day 14Head north to the Imperial City of Huế
Head north to the Imperial City of Huế. There’s lots to do here, with options to visit the indestructible Royal Citadel and tombs, cruise along Perfume River, or jump on a motorbike and ride around like the local people.
Day 15Your second day in Huế comes with more…
Your second day in Huế comes with more free time to enjoy the city. In the afternoon, travel through Vietnam's stunning countryside to the green rocky mountains of Phong Nha-Kẻ Bàng National Park.
Day 16Today
Today, opt to head underground to explore the awe-inspiring caves of Phong Nha-Kẻ Bàng National Park, where the oldest karst mountains and longest cave in Asia are found. Then it’s an overnight train to Hanoi.
Day 17After arriving in HanoiHalong Bay
Halong BayAfter arriving in Hanoi, the bustling capital of Vietnam, take a private bus to the iconic Halong Bay for a seafood lunch cruise and cave exploring. Be sure to charge your camera so you can grab a shot truly worth sharing!
Day 18Feel like you've gone back in time…
Feel like you've gone back in time with an orientation walk through Hanoi’s Old Quarter. Then stop for a drink at Bia Hoi Corner, a spot that serves bia hoi, a local beer made of rice and wheat - and costs a mere $0.25USD per glass!
Day 19A short flight brings the group…Explore a bit of Hanoi in the morning before an afternoon flight to Vientiane, the capital of Laos. There is a wealth of cultural delights to discover - on foot, by bicycle or, for the less energetic, by tuk-tuk. Visit Laos' most important national monument, Phat That Luang, or meander down the dusty riverside tracks to find villages full of friendly children, dogs and chickens. A visit to Vientiane's vibrant, colourful morning market (which incidentally is open all day!) is worthwhile, to find plenty of local treasures. A great way to round off the day is to enjoy a spectacular sunset over the Mekong.
Explore a bit of Hanoi in the morning before an afternoon flight to Vientiane, the capital of Laos. There is a wealth of cultural delights to discover - on foot, by bicycle or, for the less energetic, by tuk-tuk. Visit Laos' most important national monument, Phat That Luang, or meander down the dusty riverside tracks to find villages full of friendly children, dogs and chickens. A visit to Vientiane's vibrant, colourful morning market (which incidentally is open all day!) is worthwhile, to find plenty of local treasures. A great way to round off the day is to enjoy a spectacular sunset over the Mekong.
Day 20Enjoy the beautiful limestone karsts surrounding Vang ViengA picturesque drive north takes us to beautiful Vang Vieng. This quiet town is set along the Nam Song river amidst rice fields and limestone karsts.
A picturesque drive north takes us to beautiful Vang Vieng. This quiet town is set along the Nam Song river amidst rice fields and limestone karsts.
Day 21Free time to explore Vang Vieng
Free time to explore Vang Vieng. Opt to explore some of the caves by bicycle or take an invigorating walk. In the evening, soak in the natural beauty of the countryside as the sun sets over the river.
Day 22This morning travel from Vang Vieng to Luang Prabang
This morning travel from Vang Vieng to Luang Prabang. Get your bearings with a CEO-led orientation walk.
Day 23Witness the giving of alms to the Buddhist…Traditional Laotian culture is to give daily alms to monks. Monks are only allowed to eat food which has been donated to them before noon. On one of your mornings here, you may decide to rise with the sun, and watch one of the most important religious ceremonies in Laos. This is simply an unforgettable Southeast Asian experience.
Traditional Laotian culture is to give daily alms to monks. Monks are only allowed to eat food which has been donated to them before noon. On one of your mornings here, you may decide to rise with the sun, and watch one of the most important religious ceremonies in Laos. This is simply an unforgettable Southeast Asian experience.
Day 24Cruise the Mekong on a long houseboat before…We board our boat for the two-day journey up the mighty Mekong River making our way to Chiang Khong.
We board our boat for the two-day journey up the mighty Mekong River making our way to Chiang Khong.
Day 25New day
New day, same magnificent Mekong. Today’s your second travel day, where you’ll cross into Thailand arriving in Chiang Khong by the later afternoon. Sit back, relax, keep your eyes peeled for wildlife, and enjoy the scenic ride.
Day 26Take in the rolling countryside views…
Take in the rolling countryside views on the drive to Chiang Mai nestled alongside Thailand's northern mountains. Spend the afternoon getting to know this peaceful city known for traditional markets and glorious temples. Choose to visit Doi Suthep, cycle around, or grab a bargain at the famous night market.
Day 27Continue to explore Chiang Mai at your own…
Continue to explore Chiang Mai at your own pace making the most of this unique city. Visit the magnificent temple of Doi Suthep as it stands watch over the city from the hills above, or take a bicycle ride in the countryside.
Day 28It's time for a change of pace
It's time for a change of pace. Today, drive from Chiang Mai to Mae Malai village, where you'll set off on a trek through rugged forests to see how diverse this region of hilltribe communities really is. Every village you'll see has its own language, belief system, style of dress, and traditions. It's a few hours to the first village of hilltribe thatch bungalows, but every step is worth it as you get to know the lay of the land.
Day 29Trek for 2
Trek for 2–3 hours before stopping for lunch. Then head to a Karen village to see how traditional blankets and scarves are made. Keep trekking for a few more hours (you've got this!) before stopping in the next village for the night. Along the way, you might get the chance to stop at Mae Tang River to learn to fish using local tools or build a raft using bamboo.
Day 30After breakfast
After breakfast, leave the village by bamboo raft and get a closer look at other villages along the way. Meet the van after lunch and head back to Chiang Mai, a foodie's paradise. Try the city's most famous dishes like khao soi (noodles in curry broth) and sai oua (northern Thai sausage) and get ready for your big night out. Venture to the best bar in town to cheers to a completed trek and life-changing adventures!
Day 31Make the most of Chiang Mai with more…
Make the most of Chiang Mai with more free time, where you can go shopping in the market, get a Thai massage, or explore any of the many temples. Or, hey, you could always go back for another taste of khao soi curry. Tonight, catch up on sleep during an overnight train and wake up in Bangkok.
Day 32Get out and explore this fantastic city where…
Get out and explore this fantastic city where there is endless sightseeing to be done.
Day 33Get on first-name basis with Thailand's capital city
Get on first-name basis with Thailand's capital city. Start off the day with a street food crawl, then opt to check out Wat Pho and the Grand Palace, relax with a Thai massage, or explore the klongs (canals) by boat. Later, hop on board the overnight train.
Day 34See southern Thai hospitality in action with breakfast…
See southern Thai hospitality in action with breakfast at G Adventures-supported Khao Thep Pitak Community-Owned Farm & Restaurant, where you can also meet other international visitors. Later on, go to Lake Cheow Lan where you can take in the views while hiking or swimming in the national park. Spend tonight falling asleep to the sweet sounds of the jungle. This area is known for its natural beauty. You know what that means: lots of chances for photos.
Day 35Head across southern Thailand to find yourself…
Head across southern Thailand to find yourself in Koh Pha Ngan. Take the free afternoon to relax on the beach or by the pool — which will be easy since tonight, you'll be staying beachside or poolside in cozy bungalows. This area is known for its epic nightlife, whether or not there's a Full Moon Party. Make sure you don't miss the sunset. It'll be unforgettable.
Day 36There's no rush to leave Koh Pha Ngan
There's no rush to leave Koh Pha Ngan. Use your second day here to catch up on anything you missed yesterday, like exploring the island's waterfalls, swimming in lagoons, going for a hike, or, hey, taking another day to relax beachside.
Day 37Take the ferry to Koh Tao
Koh TaoTake the ferry to Koh Tao, a laid-back island known for snorkelling. This afternoon, put on your flippers to see a whole other world underwater. Going beneath the surface not your thing? Go the other way and climb up to the scenic view at Koh Nang Yuan View Point.
Day 38Make the most of your last full day…Koh Tao
Koh TaoMake the most of your last full day in Koh Tao paradise. Spend the day soaking up the sun beachside and be sure to get your fresh seafood fix. For your big night out, venture into the bustling nightlife and cheers to life-changing adventures with newfound friends. If you want to keep the party going, participate in the massive Koh Tao Pub Crawl.
Day 39Today
Today, it’s time to say goodbye to your group of newfound friends as the tour ends. Be sure to sneak in some last-minute photos and cheers before you head on your way. If booking a flight out of Koh Samui airport, make sure not to book one earlier than 11:00am.
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15% off Select Asia · ends 2026-06-30
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