M’Pai Bay sits on the northern tip of Koh Rong Sanloem, about 45–60 minutes by speed ferry from Sihanoukville. Getting here is easy — but only if you know one thing before you book: not every ferry to Koh Rong Sanloem stops at M’Pai Bay. Every week, travelers end up on the wrong side of the island because they assumed any Koh Rong Sanloem ticket would do. This guide covers exactly which boats stop here, what they cost, and how to reach Sihanoukville from anywhere in Cambodia.

The Golden Rule: Confirm Your Ferry Stops at M’Pai Bay

Koh Rong Sanloem has several piers, and most ferry traffic goes to Saracen Bay on the island’s east side. M’Pai Bay is a separate stop at the northern end. If your boat only serves Saracen Bay, you’ll face a long-tail boat transfer or a jungle hike to get here. When you book — online or at the pier — say the words “M’Pai Bay” (or “Village 23”) and confirm it’s a scheduled stop, not a request stop.

Which Ferry Companies Stop at M’Pai Bay

Schedules shift with the seasons, but as a general picture: GTVC Speedboat is the operator most locals recommend, with morning, midday, and mid-afternoon departures from Sihanoukville and matching return runs. Buva Sea also calls at M’Pai Bay on selected sailings, typically in the afternoon. Island Speed Ferry, by contrast, serves Saracen Bay — don’t book it expecting to land in the village.

Expect to pay $12–14 one-way (around $22–25 for an open return) for the 45–60 minute crossing. Timetables change often enough that you should always confirm the day’s departures when you buy — see our full Plan Your Visit page for current details.

The Supply Boat: The $5 Slow Option

If you’re on a tight budget and not in a hurry, a local supply boat runs to the island for around $5 each way. It leaves in the early afternoon and takes anywhere from two to four hours depending on cargo and conditions. It’s slow, basic, and honestly kind of wonderful — you’ll ride with produce, building materials, and villagers heading home. Bring sun protection and don’t plan anything for the rest of the day.

Getting to Sihanoukville First

From Phnom Penh: Buses and shared minivans take roughly 4–4.5 hours to Sihanoukville. Morning departures give you the best chance of making an afternoon ferry connection the same day.

From Siem Reap: It’s a long haul — 10–12 hours, usually as an overnight bus. Most travelers arrive in the morning, grab breakfast near the pier, and catch a midday boat.

By air: Sihanoukville has an international airport (SAI) with connections from regional hubs. From the airport it’s a 30–45 minute ride to the ferry terminal.

Booking Your Ferry

Platforms like BookMeBus.com and 12go.asia let you compare operators and reserve seats in advance. In peak season (December–February) boats genuinely sell out, so book at least a day or two ahead. In low season you can usually walk up and buy a ticket at the pier — just check the day’s last departure so you don’t get stranded on the mainland.

Arriving in M’Pai Bay

The ferry drops you at the village pier, and that’s it — no taxis, no tuk-tuks, no roads to speak of. Everything in the village is a few minutes’ walk along sandy paths. If you’ve booked a guesthouse, they’ll usually tell you how to find them from the pier; if not, browse our accommodation guide before you arrive, because places fill up in high season.

Frequently Asked Questions

How long is the ferry from Sihanoukville to M’Pai Bay?

The speed ferry takes 45–60 minutes in normal conditions. The budget supply boat takes 2–4 hours.

Can I get to M’Pai Bay from Koh Rong?

Yes — inter-island boats connect Koh Rong and Koh Rong Sanloem for around $10. Tell the captain you’re going to M’Pai Bay when you board; some boats only stop if asked.

Do ferries run in the rainy season?

Yes, but September and October bring the roughest seas, and sailings can be delayed or cancelled in bad weather. Build a buffer day into your plans if you have a flight to catch.

Is there an ATM in M’Pai Bay?

Don’t count on it. Bring enough US dollars in cash from the mainland for your whole stay — small bills are best.

Ferry schedules and prices change — always confirm current times when booking. For visas, packing tips, and everything else, see Plan Your Visit.