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

Koh Chang’s best day on the water is less about racing from island to island than finding a simple, good-value route into clear sea. The 4-island tour reaches Koh Rang National Park and three nearby islets, while the shorter option gives you two snorkel stops, beach time, and a little open-sea fishing.

I like the spacious big boat, which gives you room to sit in sun or shade, and the fresh Thai lunch served onboard. I also like the underwater photographer, a useful extra when you want a record of the day. The main drawback is the ride: rough water can make the trip bumpy, and fins are not included.

At a glance: the details that matter

• Two useful choices: The 3-island trip runs about 10:30 AM to 4 PM, while the 4-island route runs about 9:30 AM to 4:30 PM.
• Best for serious snorkeling: The 4-island route includes three snorkel stops around Koh Rang National Park.
• Good food for a boat trip: Expect a basic chicken-based Thai lunch, fruit, water, and coffee.
• Photos included: A photographer takes candid boat pictures and underwater shots, but tell the guide clearly that you want to be photographed.
• Transfers are limited: Shared hotel pickup and drop-off cover Koh Chang’s west coast as far north as White Sand Beach.
• Bring cash: The 4-island national park fee is 200 baht per adult, and parking or drinks may cost extra.

Choosing between three islands and four

The first decision is easy. Pick the 3-island option if you want a shorter day, less time on the boat, or a gentle introduction to snorkeling. Pick the 4-island option if the underwater world is the main reason you are booking.

The 3-island trip leaves at 10:30 AM and returns around 4 PM. The islands are about 40 minutes from the pier. You visit Koh Wai, Koh Lao Ya Nai, and Koh Klum, with two snorkel areas where you can also swim toward shore. The tour also gives you about an hour at a beach for swimming and rest, plus the chance to try simple fishing in open water.

The 4-island trip starts earlier, at about 9:30 AM, and returns around 4:30 PM. It takes roughly 1.5 hours from the pier to the outer island area, so you spend longer aboard. In return, you get three snorkeling locations around Koh Rang National Park, followed by a one-hour beach stop. The route includes one larger island and three small islets: Koh Rang, Koh Yak Yai, Koh Mapring, and Koh Yak Lek.

At $28 per person, both options offer a lot for the money. You get transport from many west-coast hotels, boat travel, a guide, equipment, lunch, fruit, and photography. The extra 200 baht national park fee applies only to the 4-island tour, so factor that into the real cost.

Leaving from Koh Chang’s west coast

Hotel pickup is one of the tour’s strongest practical features. For the 3-island option, the shared vehicle usually collects you between 9 AM and 9:50 AM. For the 4-island option, pickup is earlier, between 8 AM and 8:50 AM. Drop-off times can stretch to 4:30 PM for the shorter tour and 5:30 PM for the longer one.

This service only covers the west side of Koh Chang, up to White Sand Beach. If you stay on the north or east side, book without transfers and arrange your own way to Bang Bao Pier. The meeting point has free parking for a car or motorbike, though parking may cost around 70 baht according to the tour details, so confirm the current arrangement before you set out.

Pay attention to pickup time. The road transfer is shared, and the driver waits only a few minutes for late arrivals. Missing the vehicle can be treated as a no-show. If you are meeting the boat yourself, allow extra time because the walk from the parking area to the pier is long.

The big boat makes a difference

This is not a fast, cramped speedboat trip. The large boat has fixed seating, open areas, shaded spots, and a toilet. That setup suits families, older visitors, and anyone who prefers a steadier platform for putting on a mask or helping a child into the water.

The tradeoff is speed. The 4-island route can take about 1.5 hours to reach its main area, and rough seas may make that ride uncomfortable. Several practical details help: sit where movement bothers you least, keep your sunglasses and towel close, and ask the crew about a seasickness tablet if you need one. The staff can provide one, but you should not rely on that instead of preparing yourself.

Boat capacity can also affect the mood. The space is generally generous for the price, but some departures feel crowded, especially around the boarding area and during meal service. This is a shared excursion, not a private charter.

Koh Wai and the shorter route

Koh Wai is one of the main attractions on the 3-island itinerary. The stop combines swimming and snorkeling, giving you a chance to enter the water from near the island rather than only from the boat. That can be useful if you are new to snorkeling or traveling with children who feel more secure close to shore.

The tour allows about 40 minutes at the snorkeling stops. That is enough time to look around, practice breathing through the mask, and follow the guide toward fish and coral. It is not enough for a slow, all-day exploration of one reef, so keep your expectations realistic.

Koh Lao Ya Nai provides the longer beach break, with about an hour for swimming and rest. This is where non-swimmers can enjoy the setting without feeling pressured to join every water activity. Getting ashore may depend on the pontoon and water level, so anyone with limited mobility should ask before booking.

Koh Klum completes the shorter circuit. Along with the snorkeling, the tour may offer simple reel fishing in open water. It is a small touch, but children often enjoy having something to do between swimming stops.

Koh Rang National Park and three nearby islets

The longer tour is built around Koh Rang National Park. The name matters because the 200-baht adult entry fee is collected separately from the tour price. Children aged 5 to 9 pay 100 baht, and the 3-island trip has no national park fee.

Koh Yak Lek, Koh Mapring, and Koh Yak Yai each provide about 40 minutes of swimming and snorkeling. The islets sit fairly close together, which keeps the route efficient. You are not spending the day crossing huge stretches of open sea between every stop.

The benefit is variety without wasted time. One reef may have clearer water, another may have more fish, and a third may offer the best visibility on the day. Guides point out areas where you are more likely to see marine life, and strong swimmers among the crew can help identify fish underwater.

The limitation is that the stops can feel similar. If you have snorkeled in exceptional coral areas elsewhere, you may find some reefs less colorful than expected. You should book this trip for warm water, fish, coral, and a pleasant day at sea, not for advanced scuba-level reef conditions.

Koh Rang is also the main place to slow down. The route allows about an hour for free time, swimming, and a beach visit. The white sand and clear water provide a welcome pause after the snorkeling stops. Bring water shoes if you plan to walk ashore. Sand and ground surfaces can feel hot, and some island entries are not especially easy in bare feet.

Snorkeling, equipment, and safety

The tour supplies snorkel masks and life jackets. The equipment is generally described as good quality, but fins are not part of the package. If you rely on fins for comfort or have trouble swimming without them, ask the operator in advance about availability.

You do not need to be an expert swimmer to join, but you should be comfortable following crew instructions in open water. The staff can assist nervous swimmers and children, and the crew has helped non-swimmers stay safe while enjoying time in the water. Still, flotation support is not a substitute for telling the guide about your ability before you enter.

The water is often warm, and visibility can be excellent in good weather. Rainy-season conditions can still produce pleasant snorkeling, but the sea may change quickly. The schedule can be adjusted when conditions require it. If the operator decides the sea is unsafe, the tour can be canceled, rescheduled, or refunded.

Bring sunscreen, a towel, swimwear, sunglasses, snacks, and cash. Apply sunscreen before boarding and renew it after swimming. You will spend many hours outside, even if you choose not to snorkel at every stop.

Lunch, fruit, and the onboard routine

Lunch is a basic chicken-based Thai meal prepared on the boat. It is not a restaurant meal, but it is more substantial than the snack many boat trips provide. Fruit, water, and coffee are included, with watermelon and pineapple commonly served later in the day.

If you are vegetarian, notify the operator at least one day ahead. One meal was adapted for a visitor with vegetarian and gluten restrictions, but you should arrange this in advance rather than assume it will happen automatically.

You can also buy items such as beer, soft drinks, noodles, and crisps onboard or near the pier. Keep small notes and coins handy. The included food is enough for most people, but a few snacks are sensible if you have children or special dietary needs.

A useful practical point: eat lightly before departure if you are prone to seasickness. The 4-island route starts early and includes the longest ride, so a heavy breakfast followed by rolling seas is not a good combination.

The underwater photographer

The photographer is a worthwhile extra, especially for families and couples who rarely appear in their own holiday pictures. The photographer takes shots on the boat and underwater while you snorkel. The underwater photos can capture the fish and coral better than a phone held above the surface.

Do not wait quietly for the photographer to find you. Tell the guide early that you want pictures and ask when the photographer will be working. One practical complaint from the trip was that the photo instructions were not always made clear, leaving someone without images. A direct request solves much of that problem.

Keep your expectations sensible. You are joining a group photo session, not booking a private photographer. The number and delivery method of the pictures are not specified, so ask the crew how to receive them before the boat returns.

Who will enjoy this boat trip most

I would choose this excursion for anyone staying on Koh Chang who wants a straightforward day at sea without arranging a private boat. It suits couples, families, first-time snorkelers, and people who want both water time and a proper beach break.

The 3-island trip works well for children, beginners, and anyone who does not want a full day of boat travel. The beach entry can help young swimmers build confidence, and the fishing option gives them another activity.

The 4-island trip is better for confident snorkelers and people who want more reef time. It is also the better choice if Koh Rang National Park is the main attraction for you. Remember that the longer route means an earlier pickup, a longer ride, and the extra park fee.

This is not suitable for children under 2, pregnant women, people with back problems, or wheelchair users. The boat has a toilet, but boarding, swimming, the pier walk, and beach access all require some mobility.

Is the $28 price good value?

Yes, provided you understand what kind of tour you are buying. At $28, the package covers a full half-day or nearly full-day outing, a large boat, guide service, masks, life jackets, lunch, fruit, drinks, hotel transfers in the permitted area, and underwater photography.

The value is especially strong for families. Hiring transport to Bang Bao Pier, paying for a private boat, buying lunch, and arranging equipment would quickly cost more. You also avoid having to plan several separate stops.

The price does come with shared-tour limits. You cannot choose every snorkeling location, the boat may feel busy, and the ride can be rough. Coral conditions vary, too. If your only goal is the most dramatic reef possible, compare this with a specialist snorkeling or private charter option. If you want a well-organized day with swimming, beaches, food, and a chance to see fish without a high price, this package makes sense.

Should you book it?

Book the 4-island tour if snorkeling is your priority and you are happy to pay the 200-baht park fee and spend longer on the water. Book the 3-island tour if you want a shorter, more relaxed introduction with beach time and fishing.

I would bring water shoes, cash, motion-sickness medicine if needed, and a clear request for underwater photos. Check the sea forecast, but remember that conditions can change quickly in Thailand. For most people staying on Koh Chang’s west coast, this is a practical and fairly priced way to reach the outer islands without the work of organizing it yourself.

FAQ

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

The 3-island tour visits Koh Wai, Koh Lao Ya Nai, and Koh Klum, with two snorkeling stops, a one-hour beach break, and possible open-sea fishing. The 4-island tour visits Koh Rang, Koh Yak Yai, Koh Mapring, and Koh Yak Lek, with three snorkeling stops in Koh Rang National Park and a one-hour beach stop.

What time does each tour start and finish?

The 3-island tour generally runs from 10:30 AM to 4 PM. The 4-island tour generally runs from 9:30 AM to 4:30 PM. Hotel transfer times are earlier and vary by location.

Is hotel pickup available everywhere on Koh Chang?

No. Shared hotel pickup and drop-off are available only on the west side of Koh Chang, up to White Sand Beach. If you stay on the north or east side, book without transfers and arrange transportation to Bang Bao Pier.

Is lunch included?

Yes. The tour includes a basic chicken-based Thai lunch, fruit, water, and coffee. Tell the operator at least one day ahead if you need a vegetarian meal.

Do I have to pay a national park fee?

Only the 4-island tour has a separate 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 fins included?

No. The included equipment is a snorkel mask and life jacket. Fins are not listed as included, so ask the operator if you specifically need them.

Can I cancel or change my booking?

You can cancel up to 24 hours before the tour for a full refund. You can also reserve now and pay later. If unsafe weather causes the operator to cancel, you can reschedule or receive a full refund.