
Siem Reap to Bangkok: Self-Launched 29-Day Southeast Asia Loop (Cambodia, Vietnam, Laos & Thailand)
29 days · Cambodia, Vietnam, Laos & Thailand
G Adventures charges £1,600
No-markup version: ~£1,134 per person
Estimate only, not a guaranteed price. Always verify costs independently before booking.
A self-launched version of G Adventures' 29-day Someday-Thirtysomethings run from Siem Reap to Bangkok: Angkor sunrise, Phnom Penh's history, beach time on Koh Rong, a Chambok community homestay, then Vietnam's Ho Chi Minh City, Nha Trang, Hoi An, Hue, Phong Nha and Hanoi with a Ha Long Bay junk cruise, before crossing to Laos for Vientiane, Vang Vieng, Luang Prabang and the Mekong slow boat to Chiang Mai, finishing in Bangkok. You book the same hostels-instead-of-hotels, use the Reunification Express and local buses, and pick up guided activities one-by-one on GetYourGuide or direct — cutting out the group surcharge and the CEO tip while keeping the route intact. Prices are approximate backpacker rates in GBP and exclude international flights.
Day-by-day
Arrive Siem Reap
Siem Reap, Cambodia
Land at Siem Reap (REP) and take a tuk-tuk to your guesthouse in Wat Bo or the Old Market area (£3-4). Exchange a little cash, sort a Cambodian eSIM, and wander down to Pub Street in the evening for a cheap first dinner — fish amok or a bowl of kuy teav noodles for around £2-3. Buy your Angkor pass online in advance (1-day £30, 3-day £52) and arrange a tuk-tuk driver for tomorrow's sunrise run (£15-18 for the whole day including the small circuit).
🚌Airport tuk-tuk ~£3-4
🛏Hostel dorm or simple twin guesthouse, Old Market/Wat Bo area
- →Settle in and explore Old Market area
- →Book Angkor pass + sunrise tuk-tuk driver
Angkor Wat sunrise & Khmer meal
Siem Reap, Cambodia
Leave at 4:45am so your driver can get you to the moat-side reflecting pool before the crowd. Do the classic small circuit at your own pace: Angkor Wat at dawn, then Bayon's giant faces, the Terrace of the Elephants, and Ta Prohm with its strangler figs. Rather than a private guide, book a small-group sunrise tour on GetYourGuide for around £18-22 if you want the history explained, or lean on a free audio guide and a printed map. Lunch at one of the Planeterra-linked training restaurants (New Hope area does a set Khmer meal for ~£4) — the same social enterprise the group tour uses. In the evening, optional Phare Circus (from £12, book directly on their site).
🚌Tuk-tuk for the full temple circuit ~£15-18 split between 2-3 people
🛏Hostel dorm or simple twin guesthouse
- →Angkor Wat sunrise
- →Bayon, Ta Prohm & small circuit
- →Khmer set lunch at a training restaurant
- →Optional: Phare Circus
Bus to Phnom Penh
Phnom Penh, Cambodia
Take a morning Giant Ibis or Virak Buntham express bus to Phnom Penh — around 6 hours, £9-11 with a hotel pick-up. Check into a hostel around Street 172 / Riverside. Do your own orientation walk along the riverfront, through the Night Market and past the Royal Palace gardens. Street-food dinner of grilled skewers and bai sach chrouk for under £3.
🚌Giant Ibis/Virak Buntham express bus, ~6 hrs, £9-11
🛏Hostel dorm, Riverside or Street 172
- →Riverside orientation walk
- →Night Market
Phnom Penh history & street food crawl
Phnom Penh, Cambodia
Give the morning to Tuol Sleng (S-21) prison (entry ~£4) and Choeung Ek Killing Fields (~£4, plus £4 for the audio guide and £4-6 for a tuk-tuk round trip) — you don't need a tour, the audio guide is excellent. Afternoon options: Silver Pagoda (~£8) or the National Museum (~£2.50). In the evening join a small-group evening street-food crawl on GetYourGuide (~£16-18) or just map your own circuit of Psar Thmei and the Russian Market stalls for a fraction of that.
🚌Tuk-tuk between S-21 and Choeung Ek ~£5-8
🛏Hostel dorm, Riverside or Street 172
- →Tuol Sleng Genocide Museum
- →Choeung Ek Killing Fields + audio guide
- →Optional: Silver Pagoda / National Museum
- →Evening street food crawl
To Koh Rong island
Koh Rong, Cambodia
Bus to Sihanoukville in the morning (~5 hrs, £8-10, book on CamboTicket), then the fast ferry out to Koh Rong (~45 mins, £10-12 return). Find a beach bungalow or dorm on Koh Touch or 4K Beach for £7-14 a night. Spend the afternoon on the sand, swimming and eating grilled squid off the beach for a few pounds.
🚌Bus Phnom Penh→Sihanoukville £8-10; ferry return ~£11
🛏Beach bungalow or hostel dorm, Koh Touch / 4K Beach
- →Beach time and swimming
Koh Rong full day
Koh Rong, Cambodia
Do a half-day boat/snorkelling trip around the island for ~£12-15 (book on the beach or via your guesthouse), or rent a kayak for £4-5 and paddle to quieter coves. Alternative: hike the jungle trail toward Long Set Beach. Bioluminescent plankton swims run most evenings for £5-6.
🚌On foot or rent a moto-taxi ~£2-3
🛏Beach bungalow or hostel dorm
- →Snorkelling or island boat trip
- →Kayaking
- →Optional: bioluminescent plankton night swim
Koh Rong to Chambok community homestay
Chambok, Kampong Speu, Cambodia
Ferry back to Sihanoukville and take a bus toward Phnom Penh, getting off around Kampong Speu/Chambok turn-off (book the local mini-bus the night before; roughly £10-12 total). Arrange your Chambok homestay directly via the community-run CBT office or your guesthouse — around £8-10 per night including a home-cooked dinner. Bucket showers and squat toilets; it's genuinely rural. Evening meal with your host family is the highlight.
🚌Ferry + bus + shared moto to Chambok, ~£10-12
🛏Community homestay, Chambok (basic, shared facilities)
- →Community homestay
- →Home-cooked Khmer dinner with host family
Chambok to Ho Chi Minh City
Ho Chi Minh City, Vietnam
Walk to Chambok waterfall in the morning if you're feeling active (small entry fee ~£1). Then take a shared van or bus to the Bavet–Moc Bai border (~£8-10, plus 1-2 hours for the crossing), then a local bus onward to Ho Chi Minh City (~£4). Note Vietnam requires an e-visa arranged in advance — apply a couple of weeks before you fly. Check into a backpacker hostel in District 1 (Pham Ngu Lao), then hit Ben Thanh Market and a rooftop bar for a view.
🚌Shared van/bus via Bavet–Moc Bai border + local bus ~£12-14
🛏Backpacker hostel dorm, District 1
- →Ben Thanh Market
- →Rooftop bar evening
Ho Chi Minh City & overnight train to Nha Trang
Ho Chi Minh City → Nha Trang, Vietnam
Self-guided city day: War Remnants Museum (£1.50), Reunification Palace (£1.50), the Fine Arts Museum, and a coffee in a hidden alley café. Do a cheap cyclo tour (£6-8) if you want the orientation ride. In the evening grab a banh mi and head to Saigon railway station for the Reunification Express sleeper to Nha Trang, departing around 8-9pm and arriving early morning — soft sleeper 4-berth around £18-22 booked on dsvn.vn or 12Go Asia.
🚌Reunification Express SE train HCMC→Nha Trang, soft sleeper ~£18-22, ~9 hrs
🛏Overnight sleeper train (soft sleeper, 4-berth)
- →War Remnants Museum
- →Reunification Palace
- →Optional: cyclo city tour
Nha Trang beach & mud bath
Nha Trang, Vietnam
Arrive early and drop your bag at a hostel near the beach. Morning at Nha Trang's long sandy bay, then a mud bath at Thap Ba or 100 Egg for £7-9 (book direct or on Klook). Afternoon wander to Po Nagar Cham Towers (~£1). Evening street-food crawl around the night market: grilled seafood, nem nuong, and bun cha for under £5 total.
🚌Walkable city centre
🛏Hostel dorm or budget hotel near the beach
- →Beach time
- →Hot springs & mud bath
- →Po Nagar Cham Towers
- →Night market street food
Nha Trang to Da Nang overnight train
Nha Trang → Da Nang, Vietnam
Another beach morning or book a boat-and-snorkelling trip for ~£22 if you want the reef. Late afternoon explore the local markets or a café crawl. Evening sleeper train north to Da Nang (soft sleeper ~£16-20, ~10-11 hrs) — the stretch from Da Nang to Hue is one of the prettiest rail rides in Asia, so try to be awake for the morning half.
🚌Reunification Express sleeper Nha Trang→Da Nang ~£16-20
🛏Overnight sleeper train
- →Optional: island boat & snorkelling trip
- →Optional: second mud bath
Da Nang to Hoi An
Hoi An, Vietnam
Arrive in Da Nang and take a local bus or shared taxi to Hoi An (~£2-4, 45 mins). Check into a homestay or hostel in the Old Town for £10-15 a night. Afternoon orientation on foot through the Japanese Covered Bridge, Chinese assembly halls and the market — the Old Town entry ticket is ~£5 and covers five heritage sites. Pick a tailor for a fitting if that's your thing (turnaround 24-48 hrs). Big night out on the riverside bars.
🚌Local bus/shared taxi Da Nang→Hoi An ~£2-4
🛏Homestay or hostel, Hoi An Old Town
- →Old Town orientation walk
- →Japanese Covered Bridge & assembly halls
- →Optional: tailor fitting
Hoi An cooking class
Hoi An, Vietnam
Do the noodle-making and Vietnamese cooking class that the group tour includes — book equivalent half-day classes directly or on Klook for £12-16 (the operator-sold version runs £25-28). Most include a market visit and a proper sit-down lunch. Afternoon: rent a bicycle and ride to An Bang or Cua Dai beach (£2 bike hire + £1 beach parking), or take the Thu Bon river boat (£8). Evening lantern-lit wander and cao lau for dinner.
🚌Bicycle hire ~£2
🛏Homestay or hostel, Hoi An
- →Vietnamese cooking class with market visit
- →Cycle to An Bang beach
- →Optional: Thu Bon river boat
Hoi An to Hue
Hue, Vietnam
Take the local bus over the Hai Van Pass to Hue (~3 hrs, £5-7) — or hire a motorbike-riding guide for the day trip over the pass for ~£22 if you want the views and the stops at Lang Co beach. Check into a guesthouse in Hue's backpacker strip. Afternoon at the Imperial Citadel (£1.50 entry — a fraction of the pre-booked tour price) and the Perfume River promenade. Hue's bun bo Hue is mandatory dinner.
🚌Local bus over Hai Van Pass ~£5-7 (or motorbike guide ~£22)
🛏Guesthouse or hostel, Hue
- →Imperial Citadel & Forbidden Purple City
- →Perfume River walk
- →Bun bo Hue dinner
Hue to Phong Nha
Phong Nha, Vietnam
Morning tour of the Royal Tombs of Tu Duc or Khai Dinh (£4-5 with a hired scooter driver, ~£8 for the half day). Midday bus to Phong Nha (~4 hrs, £5-7). Farmstay or hostel in Phong Nha village for £8-12. Evening is quiet — eat at one of the local family restaurants and book tomorrow's cave trip.
🚌Local bus Hue→Phong Nha ~£5-7
🛏Farmstay or hostel, Phong Nha
- →Royal Tombs
- →Optional: Perfume River cruise
Paradise Cave & Dark Cave
Phong Nha, Vietnam
Book the Paradise Cave day trip directly with the Phong Nha park operator or via Klook (~£20-25 including transport and entry, versus the £38 the operator charges for a similar package). Walk the boardwalk through the enormous white crystal stalactites, then optionally add Dark Cave for the mud-bath-and-zipline combo (~£18). Hang En and Son Doong require booked tour operators and deep pockets — the 1-day Hang Va trek is the affordable middle ground (~£65).
🚌Included in cave tour
🛏Farmstay or hostel, Phong Nha
- →Paradise Cave boardwalk
- →Optional: Dark Cave zipline & mud bath
- →Optional: Hang Va trek
Phong Nha to Ha Long Bay junk boat
Ha Long Bay, Vietnam
Overnight bus or train north to Ha Long (~£15-18, 11-13 hrs — several sleeper buses run direct from Phong Nha). Join a budget 1-night/2-day junk cruise booked direct or on Klook for £85-110 including meals, kayaking and cave visit — book the cheaper end and skip the private-transfer add-on by using the boat's shuttle bus. Limestone karsts, seafood dinner on deck, sunrise swim.
🚌Sleeper bus Phong Nha→Ha Long ~£15-18; shuttle to pier included
🛏Overnight junk boat cabin (shared, budget class)
- →Ha Long Bay junk cruise
- →Kayaking among karsts
- →Cave visit
Ha Long to Hanoi
Hanoi, Vietnam
Disembark after brunch and take the local bus or express minibus into Hanoi (~£4-6, 3 hrs). Hostel in the Old Quarter for £7-12. Afternoon wander Hoan Kiem Lake, the Temple of Literature (£1.50) and Tran Quoc Pagoda (free). Evening: bia hoi corner and bun cha — this is the cheapest great dinner in the city at £2-3. Optional water puppet show (£7, book at the theatre box office).
🚌Express bus Ha Long→Hanoi ~£4-6
🛏Hostel dorm, Hanoi Old Quarter
- →Hoan Kiem Lake
- →Temple of Literature
- →Tran Quoc Pagoda
- →Optional: Thang Long water puppet theatre
Hanoi food & culture
Hanoi, Vietnam
Do a self-run food crawl through the Old Quarter — pho at a plastic-stool stall, banh cuon, egg coffee and a plate of bun dau mam tom. A guided Hanoi street food walking tour via GetYourGuide is around £18-22 if you want the local introductions. Afternoon: Vietnam Museum of Ethnology (£2) or the Imperial Citadel. Optional: a half-day trip to the Bat Trang ceramics village by local bus (£1).
🚌Walkable; occasional Grab bike £1-2
🛏Hostel dorm, Hanoi Old Quarter
- →Old Quarter street food crawl
- →Museum of Ethnology or Imperial Citadel
Hanoi to Vientiane
Vientiane, Laos
Fly Hanoi to Vientiane with Vietjet or AirAsia (around £55-75 one way booked 4-6 weeks out) — the overland alternative is a 24-hour bus, which is why the group tour flies. Apply for your Laos e-visa in advance (~£30-36). Vientiane is sleepy; guesthouse near the riverfront or Nam Phou for £10-14. Evening along the Mekong promenade and the night market.
🚌Internal flight ~£55-75; airport tuk-tuk ~£3
🛏Guesthouse or hostel, Vientiane riverfront
- →Mekong riverfront sunset
- →Night market
Vientiane to Vang Vieng
Vang Vieng, Laos
Morning at Pha That Luang (£1), Patuxai (free to climb) and Buddha Park, 25km out of town (£1 entry, 20p each way by local bus 14). Afternoon take the newly opened Vientiane–Vang Vieng high-speed train (~1 hr, £7-9, book on the LCR app) or the local bus (~£4, 3-4 hrs). Note the 20kg luggage limit and the ban on aerosols/vapes on the high-speed train. Guesthouse in Vang Vieng from £10.
🚌High-speed train LCR ~£7-9
🛏Guesthouse, Vang Vieng
- →Pha That Luang
- →Patuxai
- →Buddha Park
Vang Vieng outdoors
Vang Vieng, Laos
Hire a bicycle (£3) or scooter (£6) and ride out to the Blue Lagoon (£1) and Tham Chang cave (£1). Do the Nam Song kayaking trip for ~£12-15 booked direct on the riverfront — a tube float is the old-school alternative at £5. Sunset from Pha Ngeun viewpoint (£1). Vang Vieng's tubing-party days are mostly over; the outdoor version is much better.
🚌Scooter/bicycle hire £3-6
🛏Guesthouse, Vang Vieng
- →Blue Lagoon swim
- →Tham Chang cave
- →Kayaking on the Nam Song
- →Pha Ngeun viewpoint sunset
Vang Vieng to Luang Prabang
Luang Prabang, Laos
High-speed train to Luang Prabang (~1 hr, £9-12) — the road version is 6-7 winding hours. Check into a guesthouse in the old town peninsula for £12-16. Afternoon: Wat Xieng Thong (£1.20 entry) and a wander through the French-Indochine streets. Do a self-guided street-food crawl at the night market (buffet plate for £1.20) and book tomorrow's Kuang Si trip.
🚌High-speed train ~£9-12; tuk-tuk from station ~£3
🛏Guesthouse, Luang Prabang old town
- →Wat Xieng Thong
- →Luang Prabang night market food crawl
Kuang Si Waterfalls
Luang Prabang, Laos
Share a songthaew or minivan to Kuang Si (~£4-6 each way if you fill it with other travellers, entry £1.60) instead of paying for the operator's £20 excursion. Swim in the turquoise tiers, walk to the top, and visit the bear rescue centre. Back in town: sunset from Mount Phousi (£1.20), and optionally an Ock Pop Tok weaving visit (free).
🚌Shared songthaew return ~£8-12
🛏Guesthouse, Luang Prabang old town
- →Kuang Si Waterfalls swim
- →Bear rescue centre
- →Mount Phousi sunset
- →Optional: weaving workshop
Mekong slow boat to Pakbeng
Pakbeng, Laos
Board the public slow boat from Luang Prabang's Ban Don pier at 8:30am — tickets ~£12-15 for the two-day run to Huay Xai (book at the pier or via any travel agent). Day one gets you to Pakbeng, where you overnight in a riverside guesthouse (£8-12). The boat is the same long houseboat experience the group tour uses, minus the group. Lunch is a baguette grabbed on the way.
🚌Public Mekong slow boat, Luang Prabang→Pakbeng ~£12-15 (paid for both days)
🛏Riverside guesthouse, Pakbeng
- →Mekong slow boat day 1
- →Village stopovers
Mekong to Huay Xai & overland to Chiang Khong
Chiang Khong, Thailand
Boat continues at 9am to Huay Xai (~7 hrs). Cross the Friendship Bridge to Chiang Khong by shuttle bus (cheap, £1) — remember the Thai E-Arrival form needs completing online within 3 days of arrival. Overnight riverside guesthouse in Chiang Khong (£10-14). Evening at the Mekong-facing night market. Optional Thai cooking class in town for £18-22 (most operators here will run one with a day's notice).
🚌Slow boat Pakbeng→Huay Xai (included in ticket); shuttle bus over the border ~£1
🛏Riverside guesthouse, Chiang Khong
- →Mekong slow boat day 2
- →Chiang Khong night market
- →Optional: Thai cooking class
Chiang Khong to Chiang Mai
Chiang Mai, Thailand
Local bus (Greenbus, ~5-6 hrs, £7-9) down to Chiang Mai. Hostel in the old city for £8-13. This is the town the group tour stops in for the Doi Suthep temple (£1.20 plus a red songthaew up the mountain for ~£3) and the night bazaar food walk — both easy to do yourself. Doi Suthep and Wat Phra Singh in the late afternoon; khao soi for dinner (£2).
🚌Greenbus Chiang Khong→Chiang Mai ~£7-9
🛏Hostel dorm, Chiang Mai old city
- →Doi Suthep by songthaew
- →Wat Phra Singh
- →Night bazaar food walk
Chiang Mai to Bangkok
Bangkok, Thailand
Morning in Chiang Mai — a bike ride around the old city moat or an early cooking class (£18-22). Afternoon: overnight sleeper train from Chiang Mai to Bangkok (2nd class fan sleeper, ~£20-25, book on the SRT website or 12Go Asia, ~12-13 hrs), or fly for ~£30-40 if you're short on time. Either way, wake up in Bangkok on day 29.
🚌SRT sleeper train Chiang Mai→Bangkok ~£20-25
🛏Overnight sleeper train (or budget hotel if flying)
- →Old city bike ride
- →Optional: Thai cooking class
Bangkok canals & farewell
Bangkok, Thailand
Arrive into Krung Thep Aphiwat early and drop your bag. Do the longtail boat canals yourself: take the public Chao Phraya Express boat up to Nonthaburi or grab a canal longtail tour from Tha Chang for ~£10-12 per person shared, which is a fifth of the group-tour add-on price. Grand Palace (£11) and Wat Pho (£6) if you want them, or free Wat Arun from the far bank. Evening on Khao San Road to bookend the adventure.
🚌Chao Phraya Express boat £1-2; shared longtail boat ~£10-12
🛏Hostel dorm or budget hotel, Khao San / Rattanakosin
- →Chao Phraya Express boat
- →Shared longtail canal tour
- →Optional: Grand Palace & Wat Pho
- →Khao San night out
Self-launched vs. G Adventures
| This itinerary (self-launched) | G Adventures | |
|---|---|---|
| Price per person | ~£1,134 | £1,600 |
| Duration | 29 days | 29 days |
| Who books it | You and your group, direct | Tour operator, guided group |
| Savings | £466 per person (29%) | |
Estimate only, not a guaranteed price. Always verify costs independently before booking.
Want to see more G Adventures-style trips? Check them out here.~£1,134
estimated per person
You never pay Travel Crew for this — you pay hostels, transport, and activity providers directly, the same as if you'd booked it all yourself.
This publishes your dates so other travellers can find and join you — no tour operator needed.
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Frequently asked questions
How much does Siem Reap to Bangkok: Self-Launched 29-Day Southeast Asia Loop (Cambodia, Vietnam, Laos & Thailand) cost?+
Doing it yourself with this self-launched itinerary costs an estimated £1,134 per person for 29 days in Cambodia, Vietnam, Laos & Thailand. This is an AI-generated estimate based on typical budget-traveller prices — actual costs will vary by season and how you book.
Is this cheaper than booking with G Adventures?+
Yes — G Adventures charges around £1,600 per person for a similar tour. Doing the same route independently, using the same standard of accommodation and activities, costs an estimated £1,134 — a saving of roughly £466 (29%) per person.
How long is the Cambodia, Vietnam, Laos & Thailand trip?+
This itinerary runs 29 days, covering 29 day-by-day stops through Cambodia, Vietnam, Laos & Thailand.
How do I join this trip?+
You can join an existing open departure using this itinerary if one is scheduled, or launch your own departure with your own dates and invite other travellers to join you — no tour operator required.
Isn't it easier to just use a tour operator?+
Well, yes, a tour operator will book all the individual parts of your travel for you and provide a guide. That's obvious, but doing this has the potential to save the group thousands, which can in turn improve your itinerary substantially or save you huge amounts of money. Also, when you launch a departure, Travel Crew has tools in place to help you book the individual sections of the trip or make it easier for you to do this as a group. Really, you do not need a middle man. If you are more comfortable paying more and using a middle man, then you should certainly do this.
Is it safer to book through a tour operator?+
Arguably, there isn't much difference. A self-launched trip runs on the same principle as a group travel crew: collective responsibility, everyone looking out for each other, the same way it would if a group of friends organised the trip themselves — because that's exactly what's happening. You should always take out travel insurance before you go, self-launched or not; that doesn't change either way. Every open departure is published publicly with real dates and a real trip organiser, so it's never an anonymous arrangement, and our support team is reachable any time you need help, including in an emergency while you're away. Longer-term, we're building direct relationships with ground DMCs in popular destinations, offered as an optional paid add-on for extra on-the-ground support. Ultimately, though, the group is responsible for its own conduct and safety on a self-launched trip, same as on any trip you plan yourself.
What kind of trip is this?+
This is a backpacker, budget, culture trip through Cambodia, Vietnam, Laos & Thailand, self-launched rather than run by a tour operator — you organise it with a group you find or bring yourself.
Would you like to name the operator, name the trip, or have any suggestions about how to improve this itinerary?
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