Koh Yao Yai
Koh Yao Yai by Speedboat
Photos are for illustration and may not show current conditions. Report this photo
Koh Yao Yai Information
The Big Long island (Koh Yao Yai) is an astonishing island. It is less developed than its sister Koh Yao Noi yet, it is also way bigger than its and has plenty of opportunities for swimmers, divers, and snorkelers to enjoy the emerald water of this fascinating island. From Phuket, the speedboats depart from three piers ( Bang Rong Pier, Laem Hin Pier, and Chianwanich Pier) Bang Rong Pier has the most trips to Koh Yao Yai, while the others have only one or two speedboat trips per day. From Krabi, the speedboats leave from (Talen Pier and Nopparat Thara Pier in Ao Nang) only one trip a day and the boat makes a stop at the sister island Koh Yao Noi before continuing to Koh Yao Yai. In order to explore the island, you will have to rent your own wheels or hire a taxi, since there is no public transportation on the island.
Popular Routes
Popular crossings to Koh Yao Yai — pick a route to book.
Departures from Koh Yao Yai
The first 8 of 35 departures leaving Koh Yao Yai today — pick one to choose your date and book.
- 30mDirect4.76 kg CO₂Estimated CO₂ · per passengerEstimated CO₂ emissions per passenger for this trip. That is higher than similar trips in the industry.LowMediumHighInstant confirmation Refund available Amend available
- 4h 35m6 stops44 kg CO₂Estimated CO₂ · per passengerEstimated CO₂ emissions per passenger for this trip. That is higher than similar trips in the industry.LowMediumHighInstant confirmation Refund available Amend available
- 40m1 stop5.91 kg CO₂Estimated CO₂ · per passengerEstimated CO₂ emissions per passenger for this trip. That is higher than similar trips in the industry.LowMediumHighInstant confirmation Refund available Amend available
- 1h2 stops7.29 kg CO₂Estimated CO₂ · per passengerEstimated CO₂ emissions per passenger for this trip. That is higher than similar trips in the industry.LowMediumHighInstant confirmation Refund available Amend available
- 1h 30m3 stops11 kg CO₂Estimated CO₂ · per passengerEstimated CO₂ emissions per passenger for this trip. That is higher than similar trips in the industry.LowMediumHighInstant confirmation Refund available Amend available
- 50m2 stops6.55 kg CO₂Estimated CO₂ · per passengerEstimated CO₂ emissions per passenger for this trip. That is higher than similar trips in the industry.LowMediumHighInstant confirmation Refund available Amend available
- 1h 10m2 stops7.94 kg CO₂Estimated CO₂ · per passengerEstimated CO₂ emissions per passenger for this trip. That is higher than similar trips in the industry.LowMediumHighInstant confirmation Refund available Amend available
- 1h 50m3 stops13 kg CO₂Estimated CO₂ · per passengerEstimated CO₂ emissions per passenger for this trip. That is higher than similar trips in the industry.LowMediumHighInstant confirmation Refund available Amend available
Pick-Up
Drop-Off
Arrivals in Koh Yao Yai
The first 8 of 40 services arriving in Koh Yao Yai today — pick one to choose your date and book.
- 30mDirect4.19 kg CO₂Estimated CO₂ · per passengerEstimated CO₂ emissions per passenger for this trip. That is higher than similar trips in the industry.LowMediumHighInstant confirmation Refund available Amend available
- 40m1 stop4.76 kg CO₂Estimated CO₂ · per passengerEstimated CO₂ emissions per passenger for this trip. That is higher than similar trips in the industry.LowMediumHighInstant confirmation Refund available Amend available
- 50mDirect7.22 kg CO₂Estimated CO₂ · per passengerEstimated CO₂ emissions per passenger for this trip. That is higher than similar trips in the industry.LowMediumHighInstant confirmation Refund available Amend available
- 6h 50m8 stops49 kg CO₂Estimated CO₂ · per passengerEstimated CO₂ emissions per passenger for this trip. That is higher than similar trips in the industry.LowMediumHighInstant confirmation Refund available Amend available
- 1h 30m2 stops7.94 kg CO₂Estimated CO₂ · per passengerEstimated CO₂ emissions per passenger for this trip. That is higher than similar trips in the industry.LowMediumHighInstant confirmation Refund available Amend available
- 30mDirect4.76 kg CO₂Estimated CO₂ · per passengerEstimated CO₂ emissions per passenger for this trip. That is higher than similar trips in the industry.LowMediumHighInstant confirmation Refund available Amend available
- 1h 50m3 stops13 kg CO₂Estimated CO₂ · per passengerEstimated CO₂ emissions per passenger for this trip. That is higher than similar trips in the industry.LowMediumHighInstant confirmation Refund available Amend available
- 50m1 stop6.55 kg CO₂Estimated CO₂ · per passengerEstimated CO₂ emissions per passenger for this trip. That is higher than similar trips in the industry.LowMediumHighInstant confirmation Refund available Amend available
Hop onward from here
Piers
Chong Lard Pier
Klong Hia Pier
Koh Yao Yai Information
About Koh Yao Yai
Halfway between Phuket and Krabi, lies the magical island of Koh Yao Yai. It's known for its fishing villages, the mangroves, the sandy shores, the coconut plantations, and of course the breathtaking underwater life. The surrounding waters of the island are filled with colorful coral reefs and dotted with dive sites like the pinnacles of shark point and the king cruiser wreck.
Koh Yao Yai is the larger of the two Koh Yao islands in Phang Nga Bay. It has stayed noticeably quieter than its neighbours, with a mostly Muslim local community, rubber and coconut smallholdings inland, and long stretches of beach that rarely feel crowded. Days here run at a slow pace: longtail boat trips, cycling between villages, and sunsets over the limestone karsts that rise out of the bay.
How to get to Koh Yao Yai
The island is reached by boat, and Koh Yao Yai is well connected across the Andaman coast. Our booking system currently lists 74 routes bookable routes to and from the island, so most travellers can find a direct or single-connection option rather than backtracking to the mainland.
Crossings link Koh Yao Yai with the Phuket and Krabi shores as well as the island chain running south. Some journeys are a short hop across the bay; others are longer island-hopping legs that call at several stops along the way. Because vehicle types, timings and frequencies change by season and operator, check the live results for the exact departure you want.
Operators serving the island
Companies running services here include Bundhaya Speed Boat, Green Planet and Koh Yao Sun Smile, alongside other several operators services shown at the time of searching. Each operator sets its own pier, luggage allowance and check-in time, so read the conditions on your chosen departure before paying.
Popular routes to and from Koh Yao Yai
The island connects to Ao Nang, Koh Jum, Koh Kradan, Koh Lanta, Koh Lipe and Koh Mook, plus six more destinations bookable through the same search.
- Ao Nang — the handiest gateway for Railay, Krabi Town and onward mainland transport.
- Koh Lanta — a common next stop for travellers heading south along the coast.
- Koh Jum — a small, low-key island between Krabi and Lanta.
- Koh Mook and Koh Kradan — the Trang islands, known for the Emerald Cave and quiet beaches.
- Koh Lipe — the far southern end of the Andaman route, near the Malaysian border.
Fares vary by operator, season and how far ahead you book. Live prices start from ฿390 on the search results page, where you can compare every available departure side by side.
Piers and arrival points
Koh Yao Yai has piers on both the northern and eastern sides of the island, and the one you use depends on where you are coming from and which operator you travel with. Your ticket and confirmation will name the exact pier — check it before you set off, as the piers are some distance apart and a taxi or motorbike transfer is usually needed to reach accommodation.
On arrival, local transport is informal: motorbike taxis, songthaews and hotel pick-ups meet most boats. If you are arriving late in the day, it is worth arranging a transfer with your accommodation in advance.
Practical travel information
There are no banking facilities on the island so you better withdraw the cash you'll need on the island before going on your trip. Many small guesthouses, restaurants and boat operators are cash-only, so bring more than you think you will need.
A few other things worth knowing:
- Weather matters. The Andaman monsoon runs roughly from May to October, when seas can be rougher and some sailings are adjusted or cancelled for safety.
- Arrive early. Piers are small and check-in usually closes well before departure.
- Respect local customs. The island's community is largely Muslim; modest dress away from the beach is appreciated, and alcohol is not sold everywhere.
- Pack light. Boats and pier walkways are not built for oversized luggage.
What to see and do
Snorkelling and diving are the main draws, with day trips out to the reefs and pinnacles in the surrounding bay. Beyond the water, the island rewards slow exploring: cycle or ride between the fishing villages, kayak through the mangroves, visit the coconut and rubber plantations inland, and watch the sunset from the west-coast beaches. Longtail trips to nearby Koh Yao Noi and the smaller islets of Phang Nga Bay are easy to arrange locally.
Book your trip to Koh Yao Yai
Compare operators, departure times and prices across all 74 routes routes serving Koh Yao Yai in one place, then book with instant confirmation. Search availability for your travel date to see today's live timetable and fares.
Highlights
Shark Point and King Cruiser Wreck
Klong Son Beach
Doctor Saad
Koh Yao Yai Village
Frequently asked questions
What are the tourist seasons ?
Phuket
Phuket really just has two seasons, which are known as "high season" and "low season" (or "green season"). During the low season months (May–September), boat numbers are reduced. During the high season (October–April), boats to the surrounding islands are increased so you will have some more options.
Koh Samui
There are three distinct weather seasons on the tropical island of Koh Samui: the dry season (December until February), the hot season (March until August) and the rainy season (September until November).
How do I unlock my account now?
Wait, and try again. Every lock lifts on its own — a minute the first time, and never more than an hour however many attempts have failed. There is nothing to click and nobody to contact.
If you have forgotten your password, do not keep guessing: each wrong attempt makes the next wait longer. Use Forgot password instead. Resetting your password gets you straight back in.
What is the difference between a locked and a blocked account?
Locked is automatic and temporary. It happens after repeated failed sign-in attempts and it lifts by itself — within a minute in most cases.
Blocked is a decision made by our team, and it does not lift on its own. If your account is blocked you will need to contact us; waiting will not change it, and neither will resetting your password.
If you are not sure which applies to you, get in touch and we will tell you.
How long am I locked out for?
The first lock is one minute. If sign-in keeps failing after that, each further lock lasts longer:
- 1st lock — 1 minute
- 2nd lock — 5 minutes
- 3rd lock — 15 minutes
- 4th lock and after — 1 hour
An hour is the longest you will ever be locked out. You get five attempts before the first lock, and as soon as you sign in successfully everything resets — the next time you mistype, you start again at one minute.
My account locked but I never tried to sign in
Then someone else was trying to sign in as you, and the lock did its job — it stopped them.
Your account is safe: a lock means the attempts failed. Nobody got in. You do not have to do anything, and the lock will lift on its own.
We would still recommend two things:
- Change your password, especially if you use the same one on another website.
- Add an authenticator app in your account security settings, so a password alone is never enough to sign in as you.
If you get these repeatedly, contact us and we will look into it.
Why is my account locked?
We lock an account for a short time after several failed sign-in attempts in a row. It is an automatic safety measure: it stops someone else guessing your password, and it happens whether or not the person typing was you.
You do not need to contact us. The lock lifts on its own — see How long am I locked out for?
