Koh Mook to Koh Yao Yai ferry
On 25 Oct 2026, 12Go listed 2 boats from Koh Mook to Koh Yao Yai run by 2 companies. The quickest takes 4h 50m (Bundhaya Speed Boat, Speedboat). The first boat leaves at 11:00 and the last at 11:00.
- Journey
- 4h 50mfastest · typical 4h 50m
- Fares
- €55from, per adult
- Sailings
- 211:00
- E-ticket to your phone
- Secure checkout on 12Go
- 2 operators compared
Times and fares from 12Go for 25 Oct 2026, checked 22 Oct 2026. We earn a commission if you book, at no extra cost to you.
Which boat should I take?
Our pick from the 2 boats 12Go listed on this route.
Koh Mook to Koh Yao Yai ferry timetable
Departures 12Go listed for 25 Oct 2026. Tap a row to see that day on 12Go.
| Departs | Arrives | Time | Operator | From → to | From | Book |
|---|---|---|---|---|---|---|
| 11:00 | 15:50 | 4h 50m | Bundhaya Speed BoatSpeedboat | Koh Mook Pier → Koh Yao Yai Klong Hia Pier | €55 | Book |
| 11:00 | 06:10 | 19h 10m | Koh Ngai CampingSpeedboat | Koh Muk Pier → Klong Hia Pier Koh Yao Yai | €58 | Book |
Fares are 12Go’s lowest adult price per departure on 25 Oct 2026, in euros, rounded. Children’s fares, luggage rules and refund terms are shown at checkout.
How the boats compare
All 2 boats leave in the morning, between 11:00 and 11:00. Journey times vary a lot: the slowest, Koh Ngai Camping at 19h 10m, takes 14h 20m longer than the quickest, and fares are close together, around €55.
Arrivals in Koh Yao Yai run from 06:10 to 15:50, and a typical fare on this crossing is around €55 per adult. Every boat lands at Koh Yao Yai Klong Hia Pier.
Bundhaya Speed Boat runs the most departures (1), followed by Koh Ngai Camping (1).
Departures use 2 different departure points in Koh Mook: Koh Mook Pier and Koh Muk Pier. Pick the boat that leaves closest to where you are staying.
Ferry companies on this route
Bundhaya Speed Boat
- Boats
- 1 (11:00)
- Fastest
- 4h 50m
- From
- €55
Koh Ngai Camping
- Boats
- 1 (11:00)
- Fastest
- 19h 10m
- From
- €58
Piers at both ends
Where to go on the day, and what to expect when you land.
Koh Mook: On the east coast by the village. Island-hopping speedboats may stop at the beaches instead.
Koh Yao Yai: Klong Hia in the north takes most speedboats from Phuket and Krabi; Chong Lard (north) and Loh Jak (south-west) are also used.
Piers named by the operators for this route: Koh Mook Pier and Koh Muk Pier → Koh Yao Yai Klong Hia Pier.
Good to know before you go
Leaving Koh Mook
Koh Mook (12Go spells it Koh Muk) has a fishing village on its east side and beaches on the west, including Charlie Beach. Its best-known sight is the Emerald Cave, a sea cave you swim through to reach a hidden lagoon.
Speedboats from Koh Lanta run mainly from November to April. Off-season you may need to go via Trang and Kuan Tung Ku Pier.
Arriving in Koh Yao Yai
Koh Yao Yai is the larger and quieter of the two Yao islands, with rubber plantations, Muslim fishing villages and views of the Phang Nga Bay karsts. Boats come from Phuket’s east coast and from the Krabi side.
The island is big and has little public transport. Arrange a transfer or rent a scooter at the pier.
Weather and season
Best November to April, when the sea is calm. From May to October the south-west monsoon brings swells; big ferries keep running but many speedboat island-hops stop.
