Epic Southeast Asia: River Cruises & Karst Mountains

G Adventures · 40 days

4.7

20 Reviews

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Duration

40 days

Tour Type

Small Group

Accommodations

Basic

Physical Rating

Average

Guide Language

English

Experience Overview

Now's the time to explore Thailand, Cambodia, Vietnam, and Laos on your terms with this tour that's affordable for young travellers.

Highlights

Witness sunrise over Angkor Wat
Eat your way through the street food of four different cities
Stay overnight in a local village
Trek through the rugged forests of northern Thailand
Swim in Ko Pha-Ngan's idyllic lagoons
Explore the magnificent caves of Phong Nha

Trip Details

Duration

40 days

Transportation

Local bus, air-conditioned bus, train, walking, tuk-tuk, songthaew, local boat, junk boat, plane.

Tour Type

Small Group

Guide Language

English

Starts

Bangkok, Thailand

Finishes

Koh Tao, Thailand

Accommodations

Basic

Travel Style

18 - 39 Year Olds Only

Physical Rating

Average

Itinerary

Day 1: Bangkok

Arrive at any time and welcome to Thailand's bustling capital - Bangkok!

Tonight, meet your CEO and get to know fellow travellers as you cheers to new adventures.

Day 2: Bangkok/Siem Reap

Fly from Thailand into Cambodia, your home base for exploring Siem Reap and the incredible Angkor Wat. Opt to check out Phare Circus, a uniquely Cambodian experience.
Prefer to plan ahead? Pre-book the "Phare Circus" activity when booking your tour to include this exciting activity in your itinerary.

Day 3: Siem Reap

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.

Day 4: Siem Reap/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 5: Phnom Penh

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 6: Phnom Penh/Koh Rong

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 7: Koh Rong

Enjoy your last full day on this pristine island. Do anything you might have missed the day before, like fishing, hiking, or kayaking. Wait 'til after sunset to swim in a sea of blue sparkles caused by phosphorescent plankton. Ooh la la!

Day 8: Chambok Homestay

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 9: Chambok Homestay/Ho Chi Minh City

Cross another 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 10: Ho Chi Minh City/Nha Trang

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 11: 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.

Day 12: Nha Trang/Da Nang

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 13: Da Nang/Hoi An

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!
From Danang, it is only a short drive to the picturesque port town of Hoi An. Once known as Faifo, it was an important trading town with strong south Chinese influence and connections.

Day 14: Hoi An

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 15: Hoi An/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.
Pre-book the "Hue Motorbike Tour" on the checkout page ahead of time to include this speedy activity on your tour.

Day 16: Huế/Phong Nha

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 17: Phong Nha/Hanoi

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 18: Hanoi/Ha Long

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!

Day 19: Hạ Long Bay/Hanoi

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!
Interested in local cuisine? Opt to pre-book the "Hanoi Foodie Culture Tour" activity on the checkout page ahead of time, to include this yum on your tour.

Day 20: Hanoi/Vientiane

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 people, 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 21: Vientiane/Vang Vieng

Travel to Vang Vieng, a small town nestled among striking limestone karsts and the Song River. Take a guided hike to a famous local view point for incredible views of the valley — no filter necessary. This evening, enjoy a night out to celebrate new adventures with new friends. Cheers to keeping life exciting!

Day 22: Vang Vieng

Get the most out of Vang Vieng with a day to freely explore. Check out the caves by bicycle or trek through the countryside. Choose to kayak through Tham None cave and venture to the Blue Lagoon by booking the adrenaline bundle.
Pre-book the "Vang Vieng Adrenaline Bundle" on the checkout page ahead of time to include this excitement on your tour.

Day 23: Vang Vieng/Luang Prabang

Continue to colourful Luang Prabang and make your first acquaintance with this ancient city during an afternoon orientation walk. Afterward, embark on a short trek up sacred Mount Phousi, climbing the stone stairs with scaly golden handrails, past the monks quarters and Buddha's footprint cave, to reach the temple at the top - Wat Phousi. Enjoy a 360-degree view of the sun setting upon Luang Prabang and the Mekong River before an evening street food crawl.

Day 24: Luang Prabang

Skip sleeping in to watch the monks walk through town before dawn. Dressed in saffron robes, they receive daily alms from local residents. Then, visit the Kuang Si waterfalls on a guided excursion before free time in the evening.

Traditional Laotian culture involves giving daily alms to monks. Monks are only allowed to eat food which has been donated to them before noon. Should you rise early, you'll get to watch one of the most important religious ceremonies in Laos.

Day 25: Luang Prabang/Pak Beng

The Mekong never looked so welcoming. Board a long, cozy houseboat that will take you on a two-day journey up the Mekong River en route to Chiang Khong in Thailand. Today, cruise to a village homestay for the night, experience a Baci welcome ceremony, and enjoy dinner with your hosts.

Day 26: Pak Beng/Chiang Khong

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 27: Chiang Khong/Chiang Mai

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.
Experience the flavours and scents of traditional northern Thai cuisine by pre-booking the Northern Thai Cooking Class.

Day 28: Chiang Mai

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 29: Chiang Mai/Ban Mae Jok

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 30: Ban Mae Jok/Pa Khao Lam

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 31: Pa Khao Lam/Chiang Mai

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 32: Chiang Mai/Bangkok

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 33: Bangkok

Get out and explore this fantastic city where there is endless sightseeing to be done.

Day 34: Bangkok/Surat Thani

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 35: Surat Thani/Khao Sok

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 36: Khao Sok/Koh Pha Ngan

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 37: 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 38: Koh Pha Ngan/Koh Tao

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.

Day 39: Koh Tao

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.

Day 40: Koh Tao

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.
Want to take the hassle out of getting back to Bangkok? Book the Bangkok Express, a two-day post-tour Extra. Speak to your Global Connection Officer or travel agent to book.

Exclusions

Flights to and from origin and destinations
Airport transfers (arrival and departure)
Anything else not explicitly listed in tour inclusions
Recommended gratuities/tipping
Optional activities/tours
Personal expenses
Travel insurance
Visas, meals and beverages not stated in the list of inclusions.

Important Information

Meals

When meals are not included, your tour leader (where available) will be happy to help with restaurant recommendations, bookings, and directions. Please let us know if you have any dietary needs or preferences. We willdo our best to accommodate these, though we cannot guarantee that every request can be met.

Luggage

You are responsible for your personal belongings throughout the tour. You will need to carry your own bags between the vehicle and your hotel room. Drivers will assist with loading and unloading luggage from the vehicle.

Mobility

Travellers requiring wheelchair access should contact our sales and service team, who can make enquiries on your behalf.

Fitness Level

This tour requires an Average level of fitness. Activities are paced gently and include leisure time. You may be expected to join guided walks of up to one hour, navigate short stairways and mild inclines, and manage your own luggage. You should also be able to board and exit all transport without assistance.

Travellers are expected to be self-sufficient and capable of handling all aspects of their journey. Please discuss your circumstances and support needs with your booking agent to confirm this trip is suitable.

If you are unsure, we recommend consulting your doctor before booking or travelling. (Note: I assume each tour has a different description depending on level of fitness required).

Sightseeing

If a planned site visit is unavailable due to changes in operating hours or holiday closures, the itinerary may be altered, or a comparable activity will be substituted where possible and subject to availability.

Visas

Visa conditions can change. Once you receive your travel documents, check with the relevant embassy, consulate, or immigration office of your destination for the latest information.

It is your responsibility to ensure you have the correct and valid travel documents and to comply with all entry requirements.
Non-Australian citizens must also confirm visa and identification requirements with the appropriate consulate or visa agency.
Certain occupations (for example, journalists, government officials, or those working in charities) may face additional restrictions when applying for visas, which could affect the type of application required.

Departure Dates & Surcharges: See checkout for live dates and availability.

AUD $5,269

(Tour only)

Per Person Twin Share

Duration: 40 days

Trip Type: Small Group

Activity Level: Average

Now's the time to explore Thailand, Cambodia, Vietnam, and Laos on your terms with this tour that's affordable for young travellers.

Check Availability Brochure

Price based on per person in Double Room for departure 05 Apr 2026

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Customer Reviews

Overall Rating

Excellent

4.5

Guide

Excellent

4.5

Itinerary

Excellent

4.5

Accommodations

Excellent

4.5

Transportation

Excellent

4.5

Tour Operator

Excellent

4.5

Food

Excellent

4.5

3.0

Ramona F.

Traveled, October 2023

12/21/2023

Too many big sharing sleeping rooms, too many not included activities

5.0

Amelia G.

Traveled, October 2023

12/21/2023

I enjoyed the trip

Tour Operator

G Adventures, founded in 1990 by Bruce Poon Tip, is a global adventure travel company specializing in small-group tours that emphasize authentic, sustainable, and culturally immersive experiences. Originally launched as GAP Adventures (“Great Adventure People”), the company pioneered the concept of community-driven travel by offering affordable trips that connect travelers with local communities while minimizing environmental impact. Today, G Adventures operates in more than 100 countries, offering a wide range of itineraries across themes such as active adventures, wildlife, wellness, family, and National Geographic–partnered tours, while maintaining a strong commitment to responsible tourism and social enterprise through its Planeterra Foundation.

In Business Since 1990

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