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Vietnam

Ultimate Vietnam, Cambodia & Thailand Tour – 21 Days with Halong Cruise & Mekong River Crossing

Hanoi → Bangkok 21 days Up to 16

About this trip

Three countries in three weeks, tracing a route from northern Vietnam down through Cambodia and into Thailand. You get the big set pieces — Halong Bay, Angkor Wat, Bangkok — alongside a proper overland border crossing that most tours skip.

The route moves from Hanoi and Halong Bay south to Hoi An, across into Cambodia by speedboat along the Mekong, then on to Siem Reap and finally Thailand for an elephant experience and Bangkok's city buzz. It's a full itinerary that mixes history, temples, water and city life rather than settling into one country's rhythm.

Rated as an easy-going, partially guided trip, it works for families and groups who want the ground covered for them without every hour being scheduled.

What you'll do

  • Cruise overnight among the limestone karsts of Halong Bay
  • Explore Hanoi's streets by Vietnam Army Jeep
  • Wander the lantern-lit streets of Hoi An
  • Cross the Mekong by speedboat from Chau Doc, Vietnam to Phnom Penh, Cambodia
  • Explore the temples of Angkor Wat in Siem Reap
  • Join an ethical elephant experience near Chiang Mai before finishing in Bangkok
Good to know
  • 21 days across three countries, so it suits travellers who want breadth over lingering in one place
  • Partially guided and rated easy, with a mix of group activities and free time
  • The Mekong border crossing by speedboat is a distinctive, less common way to move between Vietnam and Cambodia
What travellers actually say

Worth it if you value seamless logistics and cultural depth. Think twice if you need flexibility or dislike packed itineraries.

  • Tour operators (David, Tracy, Sunny) actively manage logistics via WhatsApp, arrange all flights and pickups without extra stress.
  • Local guides consistently described as knowledgeable and friendly; Halong Bay cruise and Angkor Wat sunrise genuinely highlight-worthy.
  • 21 days across three countries means constant travel; reviewers specifically requested extra beach days, suggesting pace may feel relentless.
  • Food and cultural immersion praised repeatedly; parents called it their best gift, indicating strong family-travel appeal.

Distilled from real traveller reviews on TourRadar — we don't edit out the bad bits.

Tour dupe
Same trip, less money
£2,165 less all-in
Discovering the Essence of Vietnam
5from £1,52018 days
The trade-off: 3 fewer nights, and a different operator.
See the dupe
How it compares

The same-vibe trips, side by side — price, value per day, and how each is moving. Only we can lay two operators' trips out honestly.

Sorted by fit — never by who paid. Price moves and availability come from our own daily tracking.

Getting there

Hanoi
One-way · arrive 20 Jul 26

Opens Trip.com, pre-filled — one-way so you can book your return whenever. Prices & booking shown there.

Where to stay

A night before your tour in Hanoi · 20 Jul21 Jul

Booked on their own sites, separate from your tour. We may earn a commission — it never changes your price.

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