Koh Rong is Cambodia\’s most popular island — two hours off the coast of Sihanoukville, with white sand beaches, bioluminescent plankton bays and a laid-back backpacker vibe. Getting there from Phnom Penh is straightforward: bus to Sihanoukville, then ferry to the island. The whole journey takes around 5–7 hours depending on connections.
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ℹ️ Koh Rong has two main areas: Koh Toch village (the backpacker hub on the west coast) and Long Beach (4K Beach) on the east. Most ferries go to Koh Toch first. Make sure you know which side your accommodation is on.
The Route: Phnom Penh → Sihanoukville → Koh Rong
There is no direct connection from Phnom Penh to Koh Rong. The journey always involves two legs: overland to Sihanoukville (also called Kampong Som), then by ferry to the island. Some operators sell a combined bus + ferry ticket which simplifies the logistics.
Step 1: Phnom Penh to Sihanoukville (Bus)
Multiple operators run comfortable express buses from Phnom Penh to Sihanoukville throughout the day. The journey takes 3.5–4.5 hours on the new expressway.
- Operators: Giant Ibis, Mekong Express, Larryta, Capitol Tours
- Journey time: 3.5–4.5 hours
- Price: $7–12 USD
- Departures: Multiple daily, 7:00 AM–2:00 PM
- Drop-off: Sihanoukville bus station / central area near pier
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Step 2: Sihanoukville to Koh Rong (Ferry)
Ferries to Koh Rong depart from Sihanoukville\’s Ochheuteal Pier (also called Tourist Pier). The main operators are Speed Ferry Cambodia and Buva Sea Cambodia. The journey takes around 45 minutes on the fast ferry.
- Operators: Speed Ferry Cambodia, Buva Sea Cambodia
- Journey time: 40–60 minutes
- Price: $10–15 USD
- Departures: Several daily — usually 8:00 AM, 12:00 PM, 3:00 PM (check current schedules)
- Note: Last ferry timing matters — don\’t miss it or you\’re stuck on the mainland overnight
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Combined Bus + Ferry Ticket
Several operators sell a through ticket from Phnom Penh directly to Koh Rong — bus to Sihanoukville and ferry to the island combined. This is the easiest option as it avoids coordination at the pier. Giant Ibis and some travel agencies in Phnom Penh offer this service.
- Total price: $18–25 USD (combined)
- Total time: 5–6 hours door-to-pier
- Advantage: No stress about ferry timing or finding the pier
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Journey Summary
| Leg | Method | Time | Cost from |
|---|---|---|---|
| Phnom Penh → Sihanoukville | Express bus | 3.5–4.5 hours | $7 USD |
| Sihanoukville → Koh Rong | Fast ferry | ~1 hour | $10 USD |
| Total | ~5–6 hours | ~$17–25 USD |
Koh Rong: What to Know Before You Arrive
Koh Rong has two main areas accessible by ferry. Koh Toch on the west coast is the main backpacker village — most bars, guesthouses, and restaurants are here. 4K Beach (Long Beach) on the east coast is quieter and more remote. Confirm with your accommodation which pier they\’re closest to before boarding.
There are no ATMs on Koh Rong — bring enough cash in USD or Khmer Riel from Sihanoukville or Phnom Penh before you travel.
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Frequently Asked Questions
How long does it take to get from Phnom Penh to Koh Rong?
Allow 5–6 hours total: around 4 hours by bus to Sihanoukville, then up to 1 hour by ferry to Koh Rong. Add extra time if you need to wait at the pier.
Is there a direct bus to Koh Rong from Phnom Penh?
Not a single vehicle — but combined bus + ferry tickets are available from several operators and effectively function as a through connection. The bus drops you near the pier and the ferry ticket is already included.
What time should I leave Phnom Penh to catch the last ferry?
The last ferry to Koh Rong typically departs Sihanoukville around 3:00–4:00 PM (confirm current times when booking). To catch it safely, take a morning bus from Phnom Penh departing no later than 9:00–10:00 AM.
Are there ATMs on Koh Rong?
No. Bring USD cash from Phnom Penh or Sihanoukville. Most places on the island accept USD; Khmer Riel is also fine for small purchases.
Related Guides
- Phnom Penh to Sihanoukville: Bus Guide
- Sihanoukville to Koh Rong: Ferry Guide
- Koh Rong vs Koh Rong Samloem: Which Island to Choose
- Phnom Penh to Siem Reap: All Options Explained
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