REVIEW · THAILAND
Koh Chang: 3 or 4 Islands Snorkel & Beach Tour by Big Boat
Koh Chang’s best water time comes offshore, where a big boat carries you to warm swimming spots, small reefs, and white beaches. The 4 Islands Tour gives you three snorkeling stops in Koh Rang National Marine Park, while the 3 Islands Tour offers a shorter outing with more time for an easy beach break and even a little fishing.
I like the spacious boat, with covered and sunny seating, a toilet, and enough room to avoid feeling trapped beside your neighbor. I also like the practical extras: lunch is cooked onboard, fruit and water are included, and a photographer takes underwater pictures. The main catch is the sea itself. Big waves can make the ride rough, and the boat can feel crowded when the tour is full.
- Two routes: Pick a 3-island half-day trip or a longer 4-island outing.
- Useful snorkeling time: The 4-island route includes three 40-minute water stops.
- Good onboard value: Thai lunch, fruit, water, coffee, equipment, and transfers are included.
- Photographs in the water: An underwater photographer captures snorkeling moments at no extra charge.
- Extra cash needed: The 4-island route charges a 200-baht national park fee for adults.
- Best practical tip: Bring cash, sunscreen, a towel, and seasickness medicine if you are prone to motion sickness.
Choosing Between Three Islands and Four

The choice is simple. Take the 3 Islands Tour if you want a shorter day, a little less time on open water, and a relaxed mix of snorkeling, beach time, and fishing. It runs from about 10:30 AM to 4 PM and reaches its stops in roughly 40 minutes from the pier.
The route visits Koh Wai, Koh Lao Ya Nai, and Koh Klum. You get two snorkeling locations where you can also swim toward shore, plus about an hour at a beach for swimming and rest. This is the sensible choice for families, first-time snorkelers, or anyone who does not want a full day at sea.
The 4 Islands Tour starts earlier, around 9:30 AM, and returns at about 4:30 PM. The first long ride takes roughly 1.5 hours from the pier, but the stops are close together once you reach Koh Rang National Marine Park. You visit Koh Rang, Koh Yak Yai, Koh Mapring, and Koh Yak Lek.
This route is aimed at people who care most about time in the water. It includes three snorkeling sessions of about 40 minutes each, along with a one-hour stop at a white-sand beach. You will pay an additional 200 baht per adult or 100 baht per child aged 5 to 9 for the national park.
One small point matters here: the 4-island trip includes one larger island and three small islets. Do not picture four separate, far-flung islands with long shore visits. The sites are close to one another in the park, which keeps the snorkeling time efficient but gives you less quiet time between stops.
The Ride from Koh Chang to the Islands

Hotel pickup is available on Koh Chang’s west side, as far north as White Sand Beach. For the 3-island trip, shared-car pickup normally runs from 9 AM to 9:50 AM. For the 4-island trip, pickup is earlier, from 8 AM to 8:50 AM.
The transport is useful, but it is not luxury transport. One account describes the shared vehicle as a little packed, with a bumpy and windy road. That is part of getting around Koh Chang, and the ride is included in the price. Be ready at your hotel on time. The driver may wait a few minutes, but a late arrival can be treated as a no-show.
If you stay on the north or east side of the island, book without transfers and arrange your own ride to Bang Bao Pier. At the meeting point, parking is free according to the tour information, though another note lists a parking cost of about 70 baht if you arrive by your own vehicle. Confirm the local arrangement when you book.
The walk from the parking area to the pier can be long, so allow time. The meeting point image is sent after booking. This is not the place to arrive at the last second with loose bags and wet towels.
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What the Big Boat Does Well

The boat is one of the strongest features. You have a choice of shade or open sun, plenty of seats, and a toilet onboard. It is not a private yacht, but it gives you more breathing room than a small speedboat, and the ride is generally smoother in calm conditions.
That size also makes the trip easier for mixed groups. Strong swimmers can spend time in the water, while non-swimmers can remain onboard and still enjoy the views. Crew members have helped nervous swimmers and children in the water, and the equipment is described as good quality.
There is one tradeoff. A larger shared boat carries more people, so you should not expect a quiet private outing. Some departures feel crowded, especially around the loading areas and the most popular reef stops. The upside is that the price is low for a full boat day with food and equipment.
Fins are not listed among the included equipment. You receive a mask and life jacket, but several people wished fins were provided. If you normally snorkel with fins, ask ahead or bring your own if practical.
The 3 Island Route: Koh Wai and Beyond

The shorter route begins with the islands around Koh Wai, Koh Lao Ya Nai, and Koh Klum. The setting is the attraction here: warm water, small beaches, and easy access to snorkeling without committing to the longer ride toward Koh Rang.
The two snorkeling stops last about 40 minutes each. You may also swim toward shore, which is helpful if you are still building confidence in the water. One family found the beach stop useful for children because they could practice snorkeling from shore before heading to offshore sites.
Koh Lao Ya Nai includes about an hour for free time and swimming. That gives the 3-island trip a gentler rhythm than a route built almost entirely around reef stops. You can dry off, sit on the beach, and enjoy the color of the water without rushing straight back into a mask and life jacket.
The route may also include open-sea fishing. It is a simple activity, not a serious fishing expedition, but children have enjoyed trying it. If your group wants a relaxed first taste of a boat tour, this combination works well.
The limitation is that the 3-island route is not the best match for someone seeking the greatest amount of reef time. You still snorkel, but the 4-island route gives you three dedicated snorkeling locations inside the national park.
The 4 Island Route: Three Reef Stops in Koh Rang

The longer trip reaches Koh Rang National Marine Park, with snorkeling around Koh Yak Lek, Koh Mapring, and Koh Yak Yai. Each water stop lasts about 40 minutes, enough for a proper look without making the day feel like one endless session in the sea.
The fish and coral are the reason to choose this route. The water can be clear and warm, and you might see many kinds of fish, coral, shells, and, on some outings, a turtle. The sites are fairly close to one another, so they can look similar. If you have spent time snorkeling or scuba diving in richer reef areas, the coral may seem less colorful than expected.
That is an important bit of honest advice. The tour is good for seeing fish in clear tropical water, but it is not a specialist reef expedition. Conditions change with weather, light, and sea movement. One stop may feel ordinary, then the next offers better visibility or a larger reef.
Koh Rang itself provides the main beach break, with about an hour for swimming and free time. The white sand and clear water make this the best chance to stop treating the day as a sequence of water entries and simply enjoy being on an island.
Some shore access can be awkward. At one beach, the pontoon did not reach far enough for an easy landing. Wear secure footwear, and consider water shoes because sand and surfaces can become hot. You do not need them to snorkel, but they are useful when walking on shore.
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Lunch, Fruit, and the Underwater Camera

Lunch is a basic chicken-based Thai meal prepared on the boat. It is not a restaurant meal, but the portions are considered adequate, and many people find the food better than expected. Fresh watermelon and pineapple follow, with drinking water and coffee included.
Tell the operator at least one day ahead if you need vegetarian food. A vegetarian and gluten-free request was accommodated, but advance notice is the sensible approach. Bring snacks if you have a large appetite or dietary needs that cannot be covered by the standard meal.
Beer, soda, noodles, and crisps may be available for purchase onboard, so cash is useful. The national park fee for the 4-island route is also collected separately. Keep small bills handy.
The underwater photographer is a worthwhile extra. Photos can include candid shots on the boat and pictures taken while you snorkel. Do not assume the photographer will automatically find you. Tell the guide clearly that you want photographs, and listen for instructions about when and where the photo session happens.
How Good Is the Snorkeling?

The water is usually the star, with warm temperatures and good color at the beach stops. You can expect tropical fish and coral, but the exact quality depends on sea conditions and the site used that day. The crew may switch spots to find less crowded or better conditions.
The guides point out areas where fish gather, and strong swimmers among the crew can show you small underwater sights. That adds value because a reef can look like a field of rocks if you do not know where to look.
Still, this is a group snorkel trip. You will not receive a long marine-life lesson or private instruction. One person found the guide’s instructions hard to hear over the motor and said they were delivered too quickly. If you miss something, ask directly, and stay close enough to hear the safety briefing.
Non-swimmers are not excluded from the day, though they cannot take part in the snorkeling in the same way. The crew has helped nervous swimmers, but you should not treat that as a replacement for personal water confidence. Life jackets and masks are provided, and the tour is not suitable for children under two, pregnant women, people with back problems, or wheelchair users.
Weather, Waves, and Comfort
Thailand’s rain can arrive quickly, especially during monsoon season. Rain does not automatically ruin the day, and clear water has been possible even in rainy months, but visibility and comfort are less predictable.
When the sea is rough, the big boat can still move a lot. Several people appreciated the boat’s size but found the ride bumpy or windy. If you suffer from seasickness, take appropriate medicine before departure, or ask the staff what they offer. Sit in a covered, central area if possible, and avoid arriving on an empty stomach.
The operator cancels when conditions are unsafe. You can then reschedule or receive a full refund. Otherwise, bring sunscreen, sunglasses, swimwear, a towel, water-resistant footwear, and cash. There may be limited chances to buy supplies once the boat leaves the pier.
Is the 28 Dollar Price Good Value?

At about $28 per person, this is strong value if you want several hours on the water without arranging transport, meals, and equipment separately. The price includes west-side hotel pickup and drop-off, an English-speaking guide, mask, life jacket, toilet, lunch, fruit, water, coffee, and underwater photography.
The 4-island route adds the 200-baht adult park fee, so budget for that on top. The 3-island route has no national park fee. Parking may also cost around 70 baht if you arrive by car or motorbike, depending on the local arrangement.
You are paying for a shared outing, not privacy. The boat may feel crowded, the lunch is simple, fins are not included, and the reef colors may disappoint experienced snorkelers. But for a family, couple, or first-time snorkeler who wants a well-organized day at a modest price, the package makes practical sense.
Who Should Book This Koh Chang Boat Trip?

I would choose the 3-island route for families with younger children, casual swimmers, and anyone who wants a half-day feel with a proper beach stop. It also suits you if you are unsure how much time you want to spend offshore.
I would choose the 4-island route if snorkeling is the main purpose of your day. You get three water stops, a national park setting, and a longer outing for only a modest extra cost beyond the park fee. The early start is worth accepting if you want more time in the water.
This is less suitable for a private, quiet escape, serious scuba enthusiasts, or anyone expecting untouched coral gardens at every stop. It is also a poor match if you dislike boat movement or cannot manage a walk from parking to the pier.
Final Verdict
Book this tour if you want a straightforward, affordable way to see Koh Chang’s nearby islands, with food and transfers handled for you. My pick is the 4 Islands Tour for keen snorkelers and the 3 Islands Tour for a relaxed family day.
Bring cash, ask for your underwater photos, pack water shoes, and take seasickness precautions if needed. With those details sorted, you get a friendly crew, useful equipment, warm water, good beach time, and a full day that delivers solid value.
FAQ
Which Koh Chang tour should I choose?
Choose the 3 Islands Tour for a shorter outing with two snorkeling stops, a beach break, swimming, and possible fishing. Choose the 4 Islands Tour for three snorkeling stops in Koh Rang National Marine Park and a longer day.
Are hotel transfers included?
Transfers are available from hotels on the west side of Koh Chang, up to White Sand Beach. Hotels on the north or east side need to book without transfers and arrange transport to Bang Bao Pier.
What food is included?
The tour includes a basic chicken-based Thai lunch, fruit, water, and coffee. Request a vegetarian meal at least one day before departure.
Is the national park fee included?
The 4 Islands Tour requires an additional fee of 200 baht per adult or 100 baht per child aged 5 to 9. The 3 Islands Tour has no national park fee.
What snorkeling equipment is provided?
A snorkeling mask and life jacket are included. Fins are not listed as included, so ask ahead if you want to use them.
What should I bring?
Bring sunglasses, swimwear, a towel, sunscreen, snacks, and cash. Water shoes are useful for hot or uneven beach surfaces, and seasickness medicine may help if you are sensitive to boat movement.
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