Longtail boat on the beach at Bottle Beach, Koh Phangan

Gulf of Thailand Islands - Koh Phangan, Koh Samui and Koh Tao: which one suits you?

Three islands a short boat ride apart, three different styles of holiday. Here you'll find everything you need to choose where to go, where to stay and how to combine them.

We were here: February-March 2025
How long: About a month in the area
Best for: Beaches · couples · parties · diving · island hopping
When to go: Mainly February-April; some of the summer months work well too

Choose a destination ↓

Three islands, three styles of holiday

The Gulf of Thailand lies on the eastern side of southern Thailand, and it is home to three of the country's best-known and best-loved islands: Koh Phangan, Koh Samui and Koh Tao.

All three Gulf of Thailand islands offer tropical beaches, blue water, coconut palms and beautiful views, yet each one feels completely different.

To us, Koh Phangan is the most varied of the three. You'll find quiet beaches, fishing villages, romantic hotels, small restaurants, parties and a free, easy-going atmosphere.

Koh Samui is bigger and more developed. It has a wide choice of hotels, restaurants, shopping centres, nightlife and an airport, so it suits anyone who wants a comfortable holiday with plenty of options.

Koh Tao is smaller, and the sea is at the heart of the experience. It is best known for its diving and snorkelling sites, but it also has lovely beaches, viewpoints, restaurants and a pleasant island feel.

We travelled around the area in February and March 2025, and the differences between the islands were far greater than any photo could tell you.

Our advice is not to choose by the prettiest beach alone, but by the kind of holiday you are looking for.

Which Gulf of Thailand island is right for you?

Koh Phangan

Much more than a party island

Koh Phangan is mainly associated with its famous Full Moon Party, but to us that's only a small part of what the island has to offer.

Here you'll find secluded beaches, green bays, fishing villages, local restaurants, romantic resorts and places with a very relaxed atmosphere.

One of the things we loved about Koh Phangan is how different the areas are. At Thong Nai Pan Noi beach we stayed at the Panviman hotel, which sits on a hill facing the sea. The area has luxury hotels, a beautiful beach and a small village with restaurants and places to eat.

In the north of the island we visited Chaloklum, a fishing village with a pier and a local feel. From there we also took a longtail boat to Bottle Beach, a gorgeous beach you can reach by boat or on a hiking trail.

These experiences are very different from Koh Phangan's image as nothing more than a party island. You can spend a few calm days here, hop between beaches, eat in small restaurants and enjoy a less urban atmosphere.

Good for: Beaches · couples · parties · nature · a varied holiday
Less suited to: Anyone who wants all services and attractions within a short walk

Koh Phangan guide

Koh Samui

The biggest and most convenient island

Koh Samui is the most developed of the three, and its great advantage is choice.

It has busy beaches with restaurants and bars, quiet resort areas, luxury hotels, shopping centres, markets and an international airport.

But it's important to understand that no single area represents all of Koh Samui. Chaweng suits anyone looking for a touristy beach with restaurants and nightlife. Bophut and Fisherman's Village offer a different atmosphere, with restaurants, shops and a pleasant promenade. Lamai and other areas suit those who prefer a slower pace.

During our trip we also stayed around Chaweng Noi, a good example of how you can find fairly quiet areas on Koh Samui, even not far from the tourist hubs.

The advantage of Koh Samui is that you can tailor your holiday to almost any style, but choosing the area you stay in matters a great deal. Distances on the island are fairly large, and driving between beaches can take time, especially at busy times of day.

Good for: Families · couples · luxury hotels · shopping · restaurants · nightlife
Less suited to: Anyone looking for a small, simple, secluded island you can get to know entirely on foot

Koh Samui guide

Koh Tao

A small island with an impressive underwater world

Koh Tao is one of Thailand's best-known destinations for diving and snorkelling.

The island is smaller than Koh Samui and Koh Phangan, and the atmosphere is different. There are small beaches, bays, boats heading out on sea trips, dive schools and viewpoints.

One of the main areas is Sairee Beach, home to many restaurants, bars and places to stay. During our time on Koh Tao we stayed in the Sairee area, at Seashell Resort.

Koh Tao is especially suited to anyone who loves spending time in the water, snorkelling or learning to dive. At various sites around the island you can see tropical fish, coral and sometimes sea turtles and reef sharks, depending on the site and conditions.

But even if you don't dive, you can enjoy the island. You can spend time on the beaches, take a boat trip around the island, visit viewpoints and head out to neighbouring Koh Nang Yuan.

Good for: Diving · snorkelling · beaches · couples · travellers who love the sea
Less suited to: Anyone looking for big shopping centres or getting around as easily as on Koh Samui

Koh Tao guide

Quick comparison - Koh Phangan, Koh Samui or Koh Tao?

Topic	Koh Phangan	Koh Samui	Koh Tao
Beaches	Excellent and varied	Excellent and varied	Pretty bays and beaches
Nightlife	Parties and nightlife areas	Wide variety	Mainly around Sairee
Peace and romance	Excellent in the right areas	Excellent in quiet hotels and areas	Very good
Diving and snorkelling	Good options	Mostly boat trips	One of its main strengths
Families	Good, depending on the area	Varied and especially convenient	Suits some families
Shopping and services	Moderate choice	The widest choice	Fairly limited choice
Getting around	Needs planning	Fairly easy by car or taxi	Depends on the area and access road

Our pick by type of holiday: Koh Phangan if you want variety and an island feel, Koh Samui if you prefer comfort and lots of choice, and Koh Tao if the sea and snorkelling are a central part of your trip.

Before you choose where to stay - a few things worth knowing

Don't choose by beach photos alone A beach that looks beautiful in photos doesn't guarantee a convenient hotel location. In some areas the path to the beach involves a steep descent, and in others you need a taxi or a boat to reach restaurants and shops. So check the hotel's exact location, not just the name of the beach.

On Koh Phangan, the area sets the tone of your holiday Booking a hotel near Haad Rin around the Full Moon Party can give you a completely different experience from staying in Thong Nai Pan or around Chaloklum. Decide in advance whether you want nightlife, quiet beaches, restaurants within walking distance or somewhere more secluded.

On Koh Samui, distances matter Koh Samui is a fairly large island, so don't assume you can get quickly from any beach to any other area. If you want to go out in the evenings to restaurants, markets and bars, choose a hotel in an area that suits the way you like to spend your time.

On Koh Tao, check how you get in and out Some hotels on Koh Tao sit in remote bays or on hillsides. Some have spectacular views, but getting there can be less convenient. Before you book, check whether there is an accessible road, a shuttle, or whether you'll need a boat.

Not on the booking sites

What booking sites won't tell you about Gulf of Thailand

Booking at the hotel doesn't always cost the same as booking online

During our trip we came across a significant price gap at the Panviman hotel on Koh Phangan. The price we saw online was around 7,600 THB (about $226 / €201) per night, and when we arrived and our online booking hadn't gone through properly, we were offered about 4,300 THB (about $128 / €114) per night. That doesn't mean it's always better to turn up without a booking. But we learned that it pays to compare booking sites, the hotel's official website and the option of booking direct. Cancellation terms, room type and what's included in the price can also change whether a deal is worth it. These prices reflect our own experience in 2025 and are not guaranteed current rates.

"Close to the beach" doesn't always mean easy to reach

Some hotels on Koh Phangan and Koh Tao involve serious climbs and descents. A hotel on a hill can offer a stunning view, but check whether it's easy to get from there to the beach and to restaurants. This matters especially if you're travelling with suitcases or small children, or if walking is difficult for you.

Around the Full Moon, check the dates

The Full Moon Party takes place around Haad Rin on Koh Phangan and draws huge numbers of visitors. During these periods accommodation prices and demand can rise, especially near the party. Even if you're not planning to go, check the dates, because they can affect hotel availability and the atmosphere in the area.

Not every destination needs lots of nights

Koh Samui can work for a long, comfortable holiday with plenty to do. Koh Tao suits anyone who wants to dedicate time to the sea, diving and snorkelling. On Koh Phangan you can spend a few days in one area, or split your stay between two different areas to see other sides of the island. We wouldn't try to squeeze in all three just to tick them off.

If it's your first time in the Gulf of Thailand

If you only have a week, we'd start by deciding what kind of holiday you want.

A comfortable hotel, restaurants, shopping and nightlife? Koh Samui is a good choice.

Beautiful beaches, a free-spirited atmosphere, nature and a wide range from quiet areas to parties? We'd choose Koh Phangan.

Love the sea and want to spend time snorkelling and diving? Koh Tao may be the best fit.

And if you have enough time, combining the islands is part of the experience.

What we loved about the Gulf of Thailand is that you don't have to choose between a relaxing beach holiday and a varied trip. You can enjoy several different styles of holiday, sometimes just a short boat ride apart.

The main thing is to choose the islands and areas that suit you, not to try to do everything.

When to go to Gulf of Thailand?

February to April - a particularly good time These are usually fairly comfortable months to visit Koh Samui, Koh Phangan and Koh Tao. The weather tends to be drier, and there's a good chance of sunny days and pleasant beach conditions. We travelled in the area in February and March.
May to September - a good option in summer too During these months you can find plenty of beautiful days, especially compared with some destinations on the Andaman side. That said, there can still be rain, wind and waves, and the sea isn't calm every day. If you're planning snorkelling or diving trips, check local conditions.
October to December - a wetter period Across much of the Gulf of Thailand, and especially on Koh Samui and Koh Phangan, the rain tends to get heavier at this time of year. November is often considered one of the wettest months on Koh Samui. The weather can also affect boat crossings and activities at sea.

One of the most important things to understand when planning a holiday in Thailand is that the weather in the Gulf of Thailand is not the same as on the Andaman coast. While summer on the Andaman side is usually considered monsoon season, on some of the Gulf islands you can enjoy relatively good conditions during those months too.

Can you visit in the rainy season?

Yes, but come with the right expectations. A rainy season doesn't mean it rains non-stop, just as a dry season doesn't guarantee sunshine every day.

If your main aim is diving, snorkelling or island hopping, check sea conditions as well, not just the rainfall.

Three islands - how do you plan a route?

You don't have to visit all three islands to enjoy the Gulf of Thailand. The choice depends on how much time you have and what you want to do.

5-7 days

One island, or two at most

For example, Koh Samui and Koh Phangan work well for combining a comfortable holiday with a few days of a more relaxed island atmosphere. Another option is Koh Phangan and Koh Tao, if you prefer beaches, snorkelling and boat trips.

10 days

Two or three islands, depending on your pace

We would give each island at least a few nights rather than changing hotels every day or two. Remember to allow for travel days too, especially if you're relying on ferries.

Two weeks or more

All three islands at a relaxed pace

On Koh Phangan you could even split your stay between two different areas, because the atmosphere changes a great deal from beach to beach. On Koh Samui you can combine beaches, restaurants, shopping and day trips. On Koh Tao you can spend a few days snorkelling, diving and resting.

The order we recommend

If you're flying into Koh Samui, you can start there, continue to Koh Phangan and finish on Koh Tao, or do the route in reverse.

If you're coming from the mainland via Surat Thani, the order of the islands depends on your departure pier and the ferry routes available. We wouldn't fix the order of the route before checking how you'll arrive and leave.

Getting between destinations

The three islands are linked by ferries and speedboats, but there's no bridge between them.

Koh Samui ↔ Koh PhanganThis is one of the shortest crossings in the area. Journey time varies with the boat company and the departure and arrival piers, and on some services it's around half an hour to an hour. Check which pier you leave from on Koh Samui and which pier you arrive at on Koh Phangan, because the distance from the pier to your hotel can be considerable.

Koh Phangan ↔ Koh TaoBy ferry or speedboat. The crossing usually takes around one to two hours, depending on the type of boat and the route.

Koh Samui ↔ Koh TaoSome services sail direct, and sometimes the route includes a stop on Koh Phangan. Journey time varies with the company and the route, and can be anything from about an hour and a half to several hours.

From the mainland via Surat ThaniYou can also reach the islands via the mainland piers around Surat Thani and Donsak. This is a common option if you're arriving by train, bus or a flight into Surat Thani airport. Some companies offer a combined ticket that includes the land transfer and the boat.

Flying into Koh SamuiKoh Samui has an airport, so you can fly straight to the island from certain destinations in Thailand and abroad. It's an especially convenient way to skip the overland journey and the ferry.

Important tip

When planning a transfer between islands, look at the time you'll actually reach your hotel, not just the ferry departure time. Allow for the drive to the pier, waiting time, the crossing and the transfer to your next hotel.

Guides from Gulf of Thailand

Where to Stay in Koh PhanganA guide to the island's areas to stay: Haad Rin, Thong Nai Pan, Chaloklum, the west coast beaches and more.

Heart made of branches on the beach at Bottle Beach, Koh Phangan

Bottle BeachOne of Koh Phangan's most special beaches. We reached it by longtail boat from Chaloklum.

ChaloklumThe fishing village in the north of Koh Phangan, with a pier, restaurants and a Sunday food market.

Thong Nai Pan Noi beach: golden sand, large boulders in the water, palms and blue sky, Koh Phangan

Thong Nai PanTwo neighbouring bays in north-east Koh Phangan, with romantic beaches and luxury hotels.

The islands of Ang Thong Marine Park from a viewpoint

Ang Thong Marine ParkA day trip among the islands. An information guide, not an account of a visit of our own.

Torn between the three islands?

Tell us how many days you have, who's travelling with you and what matters to you on holiday - and we'll try to point you in the right direction based on what really shaped the experience for us on each island.

Thailand up close - travel from first-hand experience

The personal recommendations on this site are based on the places we visited and our own experiences in Thailand.

Practical information on transport, prices, weather and services can change, so check it close to your trip.

Where prices from our trip appear, they reflect the time of our visit and don't guarantee the same price today.

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