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

The best part of this Koh Chang outing is the balance: you get three or four island stops, plenty of time in the water, a beach break, and lunch without paying for a private boat. The big boat has room to sit in sun or shade, plus a toilet, so this feels easier than a cramped speedboat trip.

I like the choice between the shorter 3-island route and the more water-focused 4-island route. I also like the free underwater photography, which can give you a useful record of the day instead of leaving you to guard your phone in a waterproof case.

The main thing to consider is the sea. Big waves can make the ride bumpy, and the 4-island route includes a long run of about 1.5 hours from the pier. Coral quality also varies, so this is best for a pleasant day of swimming and snorkeling, not for a serious coral expedition.

Key points at a glance

• Pick your pace: The 3-island trip runs from 10:30 AM to 4 PM, while the 4-island version runs from 9:30 AM to 4:30 PM.
• Expect a real big boat: You get more room, covered seating, sun areas, a toilet, and a steadier setup than a small open boat, though rough water can still feel rough.
• The 4-island route favors snorkeling: It visits Koh Rang National Marine Park and three nearby islets, with three snorkeling stops and one beach hour.
• Lunch is better than basic fuel: Chicken-based Thai food, fruit, water, and coffee are included, with vegetarian meals available if requested one day ahead.
• Bring cash: The 4-island tour requires a 200-baht national park fee for adults, or 100 baht for children aged 5 to 9.
• Hotel pickup has a boundary: Transfers cover Koh Chang’s west coast as far as White Sand Beach, not the north or east side.

Two routes, two different kinds of day

You should choose the route before booking because the difference is more than one extra island.

The 3 Islands Tour leaves at 10:30 AM and returns around 4 PM. It reaches the islands in about 40 minutes from the pier and visits Koh Wai, Koh Lao Ya Nai, and Koh Klum. The day includes two snorkeling spots, chances to swim ashore, a one-hour beach stop, and the option to try simple open-sea fishing.

This is the sensible pick if you want a half-day feel, are traveling with children, or would rather spend less time sitting on the boat. You still get snorkeling and a proper beach break, but the schedule is less demanding.

The 4 Islands Tour starts earlier, at 9:30 AM, and finishes around 4:30 PM. The first long boat ride takes about 1.5 hours, then the stops are close together around Koh Rang National Marine Park. You visit Koh Rang, Koh Yak Yai, Koh Mapring, and Koh Yak Lek.

This route gives you three snorkeling sessions of about 40 minutes each, plus one hour at a white-sand beach. It is the better choice if the main reason you are booking is time in the water. The park fee adds 200 baht per adult, but the longer day and extra snorkeling stop still make it good value at a total tour price of about $28 per person.

Leaving Bang Bao Pier

Pickup is available from hotels on Koh Chang’s west side, up to White Sand Beach. For the 3-island trip, the shared vehicle generally collects you between 9 and 9:50 AM. For the 4-island trip, pickup is between 8 and 8:50 AM.

The transfer is useful, but do not treat the pickup window casually. If you are late, the driver may wait a few minutes, then the booking can be marked as a no-show. Roads on Koh Chang can be winding, and one shared vehicle may feel fairly full, but having a resort pickup included saves you the trouble of arranging a taxi to Bang Bao Pier.

If you drive yourself, parking at the meeting point is free according to the tour information, though a parking charge of around 70 baht may apply in some circumstances. You are asked to arrive by 10 AM at the meeting point, and the walk from parking to the pier can be longer than expected. A meeting-point image is sent after booking, so check it before setting off.

Once you reach the boat, the setup is practical rather than fancy. There are comfortable seats, open areas, covered sections, snorkeling masks, life jackets, and a toilet. Several people particularly appreciated having both sun and shade, which matters during a full day on bright tropical water.

What the 3-island route offers

The shorter route is built around variety. You are not spending the entire day snorkeling, and you are not being rushed from one photo stop to another.

At Koh Wai, expect swimming and snorkeling for around 40 minutes. The water around these islands can be warm and clear, with fish around the coral. You may also have a chance to swim toward shore, which helps less confident swimmers get comfortable.

Koh Lao Ya Nai provides the one-hour beach and swimming break on the listed route. This is the time to dry off, stretch your legs, and enjoy the island scenery instead of staying in a mask and life jacket all day. One practical warning: getting ashore can depend on the water level and the floating access point. If you have trouble stepping from the boat, tell the crew before trying.

The 3-island option also includes Koh Klum and a second snorkeling location. Fishing may be offered during the open-water sections, and children have found the simple reel fishing entertaining. It is not a specialist fishing trip, but it adds something to the day for anyone who wants a break from swimming.

I would choose this route for families, mixed-age groups, and people who want a relaxed introduction to snorkeling. Non-swimmers can remain onboard and watch, and crew members have helped nervous swimmers in the water. Still, you should be comfortable with boat transfers and tell the staff early if you need extra assistance.

What changes on the 4-island route

The longer outing takes you toward Koh Rang National Marine Park, where one larger island and three smaller islets sit fairly close together. The repeated snorkeling stops are not separated by long scenic crossings, so the day gives you more water time and less time wandering on land.

At Koh Yak Lek, the scheduled stop allows roughly 40 minutes for swimming and snorkeling. Koh Mapring offers another 40-minute water session. These spots can look similar at first, but small changes in reef shape, fish, and visibility make each one worth checking.

The one-hour stop at Koh Rang is the main chance to relax on a proper beach. You get white sand, clear water, and time to swim without immediately being called back to the boat. Wear water shoes if you have them. Parts of the beach or shallow ground can feel hot, and rocky or uneven footing is less pleasant with bare feet.

The final snorkeling stop is Koh Yak Yai, again for about 40 minutes. Conditions can make one location better than another on a given day, and the crew may adjust the exact stop if waves, visibility, or crowding call for it. That flexibility is useful, but it means the schedule is not set in stone.

The 4-island route suits strong swimmers, keen snorkelers, and anyone who wants the fullest marine portion of the trip. It may disappoint you if you expect brilliant coral colors at every stop. You should see fish and coral, but the reefs are not comparable to the best specialist snorkeling sites in Thailand. The appeal is the complete day: warm water, several reefs, island scenery, lunch, and a beach.

Snorkeling, safety, and the underwater photos

The equipment supplied includes a mask and life jacket. Fins are not listed as included, and several people wished they had been provided. If you rely on fins to move comfortably, ask about them before departure or bring your own if permitted.

The crew gives directions about where to swim for better fish sightings, and staff members are active in the water. They have helped children and non-swimmers, including holding or accompanying people who felt unsure. That support is valuable, but it does not turn the outing into a supervised swimming lesson. You remain responsible for listening to instructions and using the life jacket properly.

A photographer takes candid boat photos and underwater images. This is a nice extra, especially if you do not have a good underwater camera. Do not assume the photographer will automatically capture everyone. Tell the guide or photographer clearly that you want photos, and pay attention when the photo session is explained.

Visibility depends on weather, tides, and recent rain. Some days bring clear water, plenty of fish, and good coral views. At other times, the reefs may look less colorful than you hoped, especially if you have already visited major scuba sites. The right expectation is a very enjoyable introduction to Koh Chang’s marine life, not a guaranteed world-class reef display.

Lunch on the boat

Lunch is freshly prepared onboard and is chicken-based unless you request another meal at least one day ahead. The included food is simple Thai fare, but it is more substantial than a snack and removes the need to find food on an island.

Fruit such as watermelon and pineapple is served later, along with drinking water and coffee. Beer, soft drinks, noodles, and crisps may be available for an extra charge, so bring cash if you want something beyond the included food and drinks.

If you are vegetarian or have gluten restrictions, contact the operator before the trip. One person with vegetarian and gluten needs received a suitable meal, but last-minute requests are not something to count on.

How comfortable is the big boat?

The boat is one of the strongest reasons to consider this tour at its price. You have more space than on many small boats, with seating areas in sun and shade. You can move around, eat onboard, and use the toilet during the longer run to the marine park.

That does not mean a smooth ride in every condition. When the sea turns rough, the boat can pitch and the open crossing may feel uncomfortable. If you are prone to motion sickness, bring medication or ask about the sea-sickness tablets offered by the staff. Take them before the boat becomes rough, not after you already feel ill.

The boat can feel crowded during busy departures, even though it is described as spacious. This is a shared excursion at a low price, not a private charter. If personal space and quiet are essential, you should consider paying more for a smaller group.

The real value at about $28

At roughly $28 per person, this includes transport from eligible west-coast hotels, a guide, boat travel, snorkeling equipment, life jackets, lunch, fruit, water, coffee, and underwater photos. Add the 200-baht park charge for each adult on the 4-island route.

That is a strong package for a full day around Koh Chang. You would need to arrange transport, a boat, food, equipment, and park access separately to reproduce it. The cost also covers the crew and the convenience of a fixed schedule, which is worth a lot on an island where transport can take time.

The compromises are clear: shared transport, possible crowding, no guaranteed fins, basic rather than restaurant-style food, and limited control over the exact snorkeling sites. The tour earns its value through volume and organization, not privacy.

Who should book it?

I would book the 3-island tour if you want a shorter outing, are traveling with children, want a beach hour, or are uncertain how much snorkeling you will enjoy. Fishing gives children another activity, and the shorter boat ride is easier for people who do not love open water.

I would choose the 4-island tour if snorkeling is your priority and you are happy with an early start and a longer crossing. It gives you three water stops in Koh Rang National Marine Park, one beach hour, and a fuller day at sea.

This is also a good option for non-swimmers who want to enjoy island scenery and remain on the boat, provided they can manage the pier and boat access. It is not suitable for children under 2, pregnant women, people with back problems, or wheelchair users.

Small details that make the day better

Bring sunscreen, sunglasses, swimwear, a towel, snacks, and cash. Pack water shoes for hot beach surfaces and awkward footing, and keep valuables in a dry bag.

Plan around the weather. Rain can arrive quickly during monsoon season, and tour times or stops may change with sea conditions. If the operator decides conditions are unsafe, the trip can be canceled, rescheduled, or refunded.

Hotel transfers only work on the west side, so arrange your own transport to Bang Bao Pier if you stay on Koh Chang’s north or east side. Free cancellation is available up to 24 hours ahead, and you can reserve now and pay later, which helps if your island plans depend on the weather.

Should you book this Koh Chang boat tour?

Book it if you want an affordable, well-organized day with several chances to snorkel, a proper beach stop, and lunch already handled. The 4-island tour offers the best value for keen snorkelers, while the 3-island route is easier for families and first-timers.

Skip it if you need a private boat, guaranteed calm water, top-tier coral, or a quiet escape from other people. For everyone else, the combination of space, helpful crew, warm water, island beaches, and complimentary underwater photos makes this one of Koh Chang’s more practical full-day sea trips.

FAQ

What is the difference between the 3-island and 4-island tours?

The 3-island tour runs from 10:30 AM to 4 PM and visits Koh Wai, Koh Lao Ya Nai, and Koh Klum, with two snorkeling stops and a one-hour beach break. The 4-island tour runs from 9:30 AM to 4:30 PM and visits Koh Rang, Koh Yak Yai, Koh Mapring, and Koh Yak Lek, with three snorkeling stops and a one-hour beach break.

Is hotel pickup included?

Hotel pickup and drop-off are available from the west side of Koh Chang, up to White Sand Beach. If you stay on the north or east side, you need to book the option without transfers and arrange transport to Bang Bao Pier.

Is lunch included, and can I request vegetarian food?

Lunch, fruit, water, and coffee are included. The standard lunch is chicken-based, but you can request a vegetarian meal at least one day before the tour.

Do I have to pay a national park fee?

Only the 4-island tour has a national park fee. It costs 200 baht per adult and 100 baht per child aged 5 to 9. The 3-island tour has no national park fee.

Are snorkeling masks and life jackets provided?

Yes. The tour includes a snorkeling mask and life jacket. Fins are not listed as included, so ask about availability before the trip if you want to use them.

Can the tour be canceled because of bad weather?

Yes. Schedules may change because of weather and sea conditions. If the operator decides conditions are unsafe, the tour can be canceled, rescheduled, or fully refunded.