G Adventures
Save 20%Epic Southeast Asia: River Cruises & Karst Mountains
Vietnam, Laos, Cambodia, Thailand · 40 days · Moderate
fromCAD 4,175
Next: 02 Aug
Save 25% off, auto-applied, ends 2026-06-25
Operated by G Adventures
Total Southeast Asia: Tasty Street Eats & Chill Island Vibes
From
CAD 3,895
Duration
39 days
Countries
Vietnam, Laos, Cambodia, Thailand
Activity
moderate
Group size
Max 18
The 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.
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.
Watch 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.
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.
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.
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.
Enjoy your last full day on this pristine island. Do anything you might have missed the day before, like fishing, hiking, or kayaking.
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.
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.
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.
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.
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.
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!
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.
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.
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.
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.
After 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!
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!
A short flight brings the group to the capital city of Laos. Opt to visit temples, see the golden stupa of That Luang, or scour the markets.
Enjoy the beautiful limestone karsts surrounding Vang Vieng. Free time to hike, bike, swim or go caving.
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.
This morning travel from Vang Vieng to Luang Prabang. Get your bearings with a CEO-led orientation walk.
Witness the giving of alms to the Buddhist monks and visit the night market. Opt to take a cooking class, visit temples or cool off at Kuang Si Waterfalls.
Cruise the Mekong on a long houseboat before arriving at a village homestay for the night.
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.
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.
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.
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.
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.
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!
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.
Get out and explore this fantastic city where there is endless sightseeing to be done.
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.
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.
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.
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.
Take 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.
Make 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.
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.
At a glance
Duration
39 days
Route
Siem Reap → Koh Tao
Countries
Vietnam, Laos, Cambodia, Thailand
Activity level
moderate
Style
Beach & Islands, Culture & History, Cycling, Food & Drink, Local Living & Homestays, Multi-Country / Grand Tour, National Parks & Wilderness, Rail Journeys, Trekking & Hiking, Wildlife & Safari
Group size
Max 18
Ages
18+
Flights
Not included
Solo travellers
Welcome
Where you'll go
Day by day
Your journey through
Vietnam, Laos & 2 more countries
Showing Days 1-7
39-day itinerary
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.
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From
CAD 3,895/ person