18-35 Travel
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Cambodia

Epic Southeast Asia: River Cruises & Karst Mountains

Start & end in Bangkok 40 days Up to 18

About this trip

This is a 40-day route through Thailand, Cambodia, Vietnam and Laos, giving you real time to move through the region rather than skim the surface.

Expect a mix of city markets, hands-on food culture and beach time — from swapping stories over drinks in Siem Reap to learning noodle-making in Hoi An and watching the sun go down on Ko Pha-Ngan.

It's a fully guided group trip with a moderate pace, built around sightseeing, culture and history across four countries.

What you'll do

  • Share drinks and stories among the market stalls of Siem Reap
  • Learn noodle-making in Hoi An
  • Watch the sunset over the water on Ko Pha-Ngan
  • Travel overland through Thailand, Cambodia, Vietnam and Laos
Good to know
  • A long trip at 40 days, so it suits travellers who can commit the time
  • Fully guided group format with a moderate pace throughout
  • Focus is on sightseeing, culture and history rather than a party-heavy itinerary
Price history — our own daily tracking
Tracked 4 days · 43 checks
Today
£2,360
Typical
builds at 21 days (now 4)
Lowest
£2,360
on 16 Jul
Highest
£2,360
£2,288£2,359£2,43016 Jultoday

Cheapest live departure per day, in £, recorded by our tracker since 16 Jul. Never a brochure “was” price.

Your free day in Bangkok

Landing early, staying on, or filling free time? The best-rated day experiences in Bangkok — you book on Viator (we may earn a commission).

What travellers actually say

Worth it if you're energetic, social, and want to cram maximum experiences into 40 days. Think twice if you prefer a slower pace or travelling solo.

  • Group cohesion is genuine; travellers consistently report making lifelong friends and valuing the community aspect.
  • Itinerary delivers breadth of culture, history, food, and activities across Cambodia's highlights without obvious gaps.
  • Fast-paced schedule means this isn't a relaxing trip; you're constantly moving between locations and activities.
  • Quality of guides and specific locations matter significantly to overall experience, though all reviews praised these elements.

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

Tour dupe
Same trip, less money
£1,535 less all-in
Best of Cambodia Adventure
5from £1,06510 days
The trade-off: 30 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.

Best month to go

Departing in Oct is cheapest — from £2,360, about 21% below the priciest month (Jan).

Aug
Sep
Oct
Nov
Dec
Jan

Getting there

Bangkok
One-way · arrive 3 Oct 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 Bangkok · 3 Oct4 Oct

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

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