Koh Chang: 3 or 4 Islands Snorkel & Beach Tour by Big Boat

The sea around Koh Chang rewards an early start. This big-boat island tour combines easy transport, several snorkel stops, and a cooked Thai lunch without the price of a private charter. I like the roomy boat and the crew’s attentive help in the water, especially for children and nervous swimmers. The main catch is that open-sea conditions can make the ride rough, and the 4 Islands option adds a 200-baht national park fee.

Choose the 3 Islands route for a shorter, gentler day with time for fishing and a beach stop. Choose the 4 Islands route if snorkeling is your main reason for going, since it offers three water stops around Koh Rang National Park. Fins are not listed among the included equipment, so strong swimmers may wish to ask about them before departure.

Five useful things to know before you book

• The 3 Islands tour is the shorter option: It runs from 10:30 AM to 4:00 PM, with two snorkel stops and one hour at a beach.
• The 4 Islands tour gives you more time in the water: It runs from 9:30 AM to 4:30 PM and visits three snorkeling areas near Koh Rang National Marine Park.
• Lunch is cooked on board: Expect a basic chicken-based Thai meal, fruit, water, and coffee. Request a vegetarian meal at least one day ahead.
• The boat has room to spread out: You can sit in sun or shade, and there is a toilet on board, though the boat can feel busy at full capacity.
• Transfers only cover western Koh Chang: Hotel pickup reaches the west coast up to White Sand Beach. From the north or east side, you need to make your own way to Bang Bao Pier.
• Photos are part of the experience: An underwater photographer takes candid boat shots and snorkeling pictures, but tell the guide clearly that you want your photos taken.

Why this Koh Chang boat trip is good value at $28

At $28 per person, this is a strong-value way to reach the islands south of Koh Chang. Your price covers the boat, guide, snorkeling mask, life jacket, lunch, fruit, water, coffee, and hotel transfers from the western side of the island. You also get access to an underwater photographer, which is a pleasant extra at this price.

The value comes from the amount of moving parts handled for you. You do not need to arrange a long-tail boat, find separate snorkeling equipment, pack lunch, or negotiate transport to the pier. The crew loads everyone onto one large boat and keeps the day moving between swimming, snorkeling, and beach time.

This is not a private-island experience. You share the boat with a group, and one passenger found it crowded. Another liked the amount of space and the choice between sun and shade. I would expect a lively shared outing rather than quiet personal service.

The included lunch also earns its place in the price. It is described as basic, but repeated praise points to fresh food, good portions, and fruit such as watermelon and pineapple. Beer, soft drinks, noodles, and crisps may be available for an extra charge. Bring cash for those purchases and for the national park fee.

Pick the right route: three islands or four

The choice between the two routes affects more than the number of names on the schedule.

The 3 Islands Tour begins at 10:30 AM and returns at about 4:00 PM. The islands are around 40 minutes from the pier, so you spend less of the day sitting on the boat. This option visits Koh Wai, Koh Lao Ya Nai, and Koh Klum, with two snorkeling places where you can swim toward shore, plus a one-hour beach break.

I would choose this route for families, first-time snorkelers, or anyone who wants a half-day feel without giving up the islands. It also includes the chance to try reel fishing in the open sea, a small activity that children have enjoyed. There is no national park fee for this option.

The 4 Islands Tour leaves earlier, at 9:30 AM, and returns around 4:30 PM. The first ride to the island area takes about 1.5 hours, so it is a longer day and includes more time on the water. You visit Koh Rang, Koh Yak Yai, Koh Mapring, and Koh Yak Lek, with three snorkeling locations and a one-hour white-sand beach stop.

Do not picture four large developed islands. This route includes one big island and three small islets close together in Koh Rang National Marine Park. That makes the route efficient once you arrive, but it also means the stops can feel similar to anyone hoping for long breaks between locations.

The 4 Islands option adds a 200-baht fee per adult and 100 baht for children aged 5 to 9. Have cash ready. Children under 2 cannot join, and the trip is not suitable for pregnant women, people with back problems, or wheelchair users.

What happens at the snorkeling stops

The main appeal is the time in warm water. The crew points you toward areas where fish are easier to see, and several passengers appreciated that guides entered the water and helped point out sea life. One non-swimmer was carried and supported by the crew, while another child received steady help throughout the snorkeling time.

The water can be clear and pleasantly warm, with coral, fish, shells, and plenty to watch below the surface. A turtle has also been seen on the route. Keep expectations sensible, though. If you have snorkeled in famous coral areas elsewhere, you may find the reefs less colorful than expected. One passenger felt the coral was disappointing after scuba trips, while still enjoying the fish and the full day.

The scheduled snorkeling stops last about 40 minutes each on the 4 Islands route. That is enough time to see a fair amount without making every stop feel endless. The 3 Islands route offers two similar water stops, with the added benefit of being able to swim toward shore.

Fins are not included in the stated equipment. Several people wished they had been provided. A mask and life jacket are supplied, but you should ask the operator before departure if you want fins or need particular equipment. This matters if you are not a confident swimmer, since fins make it easier to move in open water.

The water entry can vary with conditions. At one beach, the pontoon did not reach the sand, making it awkward for some people to get ashore. This is a boat outing, not a fully accessible beach transfer, so expect a little climbing, stepping, or wading.

The islands and beaches, stop by stop

Koh Yak Lek and Koh Mapring

On the 4 Islands route, Koh Yak Lek and Koh Mapring are snorkeling stops of about 40 minutes each. You come here for fish, coral, and swimming rather than a long island walk. The small-islet setting keeps the focus on the water.

Some people feel the snorkeling locations are close together and look alike. That is fair. The advantage is less time lost moving between them, while the drawback is that you do not get four completely different island experiences.

Koh Rang National Park

Koh Rang is the main anchor of the longer trip. You get about an hour for a visit, free time, and swimming. The national park setting gives the route its most scenic stretch, with clear water and a picturesque beach.

The 200-baht park charge applies here. It is a reasonable extra if you want the 4 Islands route, but remember to add it to the advertised price when comparing tours.

Koh Yak Yai

Koh Yak Yai offers another 40-minute snorkeling and swimming stop. The islets around Koh Rang are close to one another, so the sea conditions and visibility may shape how different this stop feels from the others.

The crew may adjust the exact order or location if weather, waves, or crowding make another area better. Schedules can change for safety, and that flexibility is useful on a sea tour.

Koh Lao Ya Nai

Koh Lao Ya Nai belongs to the 3 Islands route and includes about an hour of free time and swimming. This is the beach-focused part of the shorter tour, a chance to dry off, settle down, and enjoy the turquoise water without rushing straight into another mask-and-snorkel session.

Families may prefer this rhythm. One parent appreciated having a beach first, since children could gain confidence snorkeling from shore before trying the offshore stops.

Koh Wai and Koh Klum

Koh Wai is another 3 Islands swimming and snorkeling stop. Koh Klum is included in the route, with the day also offering open-sea fishing. The exact feel of these stops depends on sea conditions, but this route gives you a wider mix of swimming, beach time, and a simple fishing activity.

If you want the highest number of snorkeling locations, book four islands. If you want a shorter ride, a beach break, and the option to fish, three islands is the more relaxed choice.

Life on the big boat

The large boat is one of the trip’s practical strengths. There are comfortable seats, open areas, shaded places, and enough room to move around between stops. A toilet is available, which matters during a full day away from shore.

The boat is not silent or intimate. The engine can make guide announcements hard to hear, particularly when the main guide speaks quickly. Sit near the guide when instructions are being given, and ask for a repeat if you miss details about water entry or meeting back on board.

The ride can be smooth in calm weather. In wind or larger waves, it may become bumpy and uncomfortable. One passenger recommends taking the seasickness tablet offered by the staff, and that is sensible advice if you are prone to motion sickness. Bring sunscreen, sunglasses, swimwear, a towel, snacks, and cash.

The transfer vehicle is a shared car or truck. It may feel packed, and the road to the pier can be winding and rough. Still, pickup at your resort is a major convenience, especially if you are staying along the west coast.

Lunch, fruit, and the underwater photographer

Lunch is prepared on the boat and served during the day. Expect a simple chicken-based Thai meal rather than a restaurant-style spread. The food has exceeded expectations for many people, and fresh fruit later in the trip is a welcome snack after swimming.

Vegetarian food is possible if you tell the operator one day before the tour. If you have other dietary restrictions, communicate them ahead of time rather than waiting until boarding.

The photographer is a nice feature, but you need to be proactive. One person enjoyed the tour but ended up without photos because the guide did not clearly explain when and where pictures would be taken. Tell the guide at the start that you want boat and underwater shots, then make yourself available when the photographer is working.

These pictures can be especially useful if you are busy helping a child, wearing a life jacket, or staying close to the boat. They let you enjoy the water without trying to manage a phone at the same time.

Who will enjoy this tour most

I would recommend the 3 Islands trip for:

• Families who want a shorter outing
• First-time snorkelers
• People who want beach time and fishing
• Anyone staying on western Koh Chang
• Non-swimmers who value close crew support

The 4 Islands trip is better for:

• Confident swimmers who want three snorkel stops
• People willing to spend a full day on the boat
• Anyone keen to visit Koh Rang National Marine Park
• Couples and friends who care more about sea life than shopping or sightseeing on land
• Families with older children who can manage a longer day

You should think twice if you dislike shared tours, feel sick on rough water, or expect spectacular coral color at every stop. The trip is best understood as a good-value day of warm-water swimming, fish watching, beach time, and easy transport, not as a private luxury cruise or a specialist reef expedition.

Getting to Bang Bao Pier without a hotel transfer

Pickup and drop-off are available only on the west side of Koh Chang, up to White Sand Beach. The 3 Islands pickup window is roughly 9:00 to 9:50 AM, while the 4 Islands pickup window is about 8:00 to 8:50 AM. Return times can vary, especially for the longer route.

If you stay on the north or east side, book the no-transfer option and arrange transport to Bang Bao Pier. At the meeting point, parking is free, although a parking charge of around 70 baht may apply if you use your own car or motorbike.

The meeting point involves a long walk from parking to the dock. Arrive by the requested time, and do not cut it close. A late pickup may wait only a few minutes before the booking is treated as a no-show.

Bring a towel, sunscreen, sunglasses, swimwear, snacks, and cash. A waterproof bag is also sensible for phones and valuables, though it is not listed as an included item.

Weather, safety, and comfort

Rain can arrive quickly in Thailand, particularly during the monsoon season. The schedule may change with sea conditions, and the trip can be canceled if the operator decides conditions are unsafe. You can then reschedule or receive a full refund.

That flexibility matters because a sunny beach at breakfast does not guarantee a calm sea by midday. Big waves can make the ride rough, even if the swimming stops remain enjoyable.

Life jackets and masks are provided, and the crew watches the water closely. Still, you need to be honest about your swimming ability. The staff have helped nervous swimmers, but open-water snorkeling is different from swimming in a hotel pool.

Should you book the Koh Chang 3 or 4 Islands tour?

Book it if you want an affordable, organized day on the water with lunch, equipment, hotel pickup from western Koh Chang, and several chances to snorkel. The crew’s friendliness, assistance with children and non-swimmers, fresh food, and roomy boat are the strongest reasons to go.

Choose three islands for a shorter outing with a beach stop and fishing. Choose four islands for more snorkeling and Koh Rang National Park, while budgeting the extra 200-baht adult fee.

I would not choose it if you need a quiet private boat, guaranteed calm seas, or world-class coral color. For most people staying on Koh Chang, though, this is a practical way to see the nearby islands without spending private-charter money.

FAQ

How much does the Koh Chang island tour cost?

The tour costs $28 per person. The 4 Islands option also requires a national park fee of 200 baht per adult or 100 baht per child aged 5 to 9. The 3 Islands option has no national park fee.

How long does the tour last?

The 3 Islands Tour runs from about 10:30 AM to 4:00 PM. The 4 Islands Tour runs from about 9:30 AM to 4:30 PM. Pickup and return transfers make the total day longer for hotel pickup customers.

Which islands does the 3 Islands Tour visit?

The 3 Islands route visits Koh Wai, Koh Lao Ya Nai, and Koh Klum. It includes two snorkeling areas, swimming, a one-hour beach stop, and the chance to try open-sea fishing.

Which islands does the 4 Islands Tour visit?

The 4 Islands route visits Koh Rang, Koh Yak Yai, Koh Mapring, and Koh Yak Lek. The route includes three snorkeling locations near Koh Rang National Marine Park and about one hour on a white-sand beach.

Is hotel pickup included?

Hotel pickup and drop-off are available from the west side of Koh Chang, up to White Sand Beach. Hotels on the north or east side are not covered, so you need to arrange transport to Bang Bao Pier.

Is lunch included?

Yes. Lunch, fruit, water, and coffee are included. The main meal is chicken-based, but a vegetarian meal can be arranged if requested at least one day in advance.

Is snorkeling equipment provided?

A snorkeling mask and life jacket are included. Fins are not listed as included, so ask the operator before the trip if you need them.

Can children and non-swimmers join?

Children under 2 cannot join. The crew can assist non-swimmers in the water, but the tour is not suitable for pregnant women, people with back problems, or wheelchair users.