This eastern route follows the Mekong to Kratie before climbing toward Mondulkiri’s highlands. It works best when the road is treated as part of the journey and both wildlife and community encounters are approached without guarantees. Expect river towns, rare dolphins, cooler hills, waterfalls and Bunong culture.
Days 1–2: Phnom Penh
Recover from arrival and gain cultural context before the longer road north and east. The Royal Palace, National Museum and the genocide memorials at Tuol Sleng and Choeung Ek give essential background.
Days 3–4: Kratie
Give the Mekong two nights: one responsible dolphin outing, riverfront time and a gentle exploration of Koh Trong.
Wildlife
Irrawaddy dolphins
A short boat trip at Kampi, north of town, to see the endangered river dolphins. Choose operators that keep engines off near the dolphins. Read more.
Island
Koh Trong
Cross by ferry and cycle the quiet island loop past pomelo orchards and stilt houses. A homestay is possible.
Sunset
Phnom Sambok
A hill pagoda with Mekong views, easy to combine with the dolphin trip on the same road.
Days 5–8: Mondulkiri
Base yourself in Sen Monorom for waterfalls, highland roads and a carefully chosen conservation or community experience. Avoid elephant riding and forced animal interaction.
Nature
Waterfalls and viewpoints
Bousra is the best known of several waterfalls, and hilltop viewpoints near Sen Monorom look over rolling grassland and forest.
Elephants
Observation, not riding
Choose a project where you walk with and watch elephants in the forest. See ethical elephant experiences.
Culture
Bunong communities
Mondulkiri is home to the Bunong, an Indigenous people. Visit with a local guide from the community, and ask before taking photographs.
Nights in the highlands are cooler than in the lowlands, so pack a light jacket.
Getting between stops
| Leg | Approximate time | Usual options |
|---|---|---|
| Phnom Penh – Kratie | 5–6 hours | Minivan, bus, private car |
| Kratie – Sen Monorom | About 3–4 hours | Minivan, private car |
| Sen Monorom – Phnom Penh | About 6–7 hours | Minivan, bus, private car |
Journey times are approximate and change with traffic, roadworks, stops and weather. Fares are not listed because operators change them often; see travel costs for indicative ranges and how to book transport for booking options. Last checked 21 September 2026.
Should you add Ratanakiri?
Only with several additional days. Banlung is not a quick extension; the extra road time deserves at least three nights once there, for the Yeak Laom crater lake, waterfalls and forest.
When to go
November to February is the most comfortable time for the highlands and for dolphin trips. In the green season, from about June to October, waterfalls are at their fullest, but rain makes rural roads muddier and slower.
Frequently asked questions
Can I see the dolphins all year?
Sightings are possible year-round but not guaranteed. The dry season, when the river is lower, is often considered the best time.
Is Mondulkiri worth the journey?
Yes, if you want cooler air, forest, conservation projects and a different culture from lowland Cambodia. Allow at least three nights.
Do I need a guide in Mondulkiri?
Not for Sen Monorom itself, but a local guide makes forest trips and community visits safer and more meaningful.
Provinces along the way
The road north follows the Mekong through several provinces worth a stop. See all 25 on our provinces of Cambodia page.
Route decision brief
Phnom Penh → Kratie → Mondulkiri
A gradual journey from the capital to the Mekong and eastern highlands
This route rewards extra time. Road travel and early starts can consume useful daylight, so protect full days for Kratie and Mondulkiri instead of counting transfer days as sightseeing days.
- Works especially well for
- Best for river landscapes, wildlife and cooler highland scenery
- The choice that improves it
- Avoid adding both provinces to a short first visit simply to increase the place count