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

Koh Chang’s best water time comes on this affordable boat trip, where you can spend much of the day swimming over coral, spotting fish, and resting on small island beaches. The 4-island route reaches Koh Rang National Marine Park, while the shorter 3-island route keeps the day easier and adds a chance to try open-sea fishing.

I like the large boat with shaded and sunny seating, a toilet, and room to move around. I also like the fresh Thai lunch and fruit, which turn a low-cost excursion into a full day out rather than a bare-bones boat ride. The main drawback is the sea: big waves can make the ride rough, and the boat may feel crowded at busy times.

Key points to know before you book

• Two routes suit two kinds of days: Choose three islands from 10:30 AM to 4 PM, or four islands from 9:30 AM to 4:30 PM.
• The 4-island route includes Koh Rang National Marine Park: Bring 200 baht per adult or 100 baht per child aged 5 to 9 for the park fee.
• Three snorkel stops fill the longer trip: Koh Yak Lek, Koh Mapring, and Koh Yak Yai each allow about 40 minutes in the water.
• The boat is built for comfort, not speed: You get seats, shade, a toilet, lunch, fruit, water, coffee, and space to sit in the sun.
• Hotel pickup only covers west-coast resorts: Transfers run as far north as White Sand Beach, but not to Koh Chang’s north or east coast.
• Ask for your photos: An underwater photographer is included, but tell the guide clearly that you want pictures taken.

Choosing between the 3-island and 4-island routes

The two tours are not simply the same trip with one extra stop. They have different rhythms, distances, and appeal.

The 3 Islands Tour leaves at 10:30 AM and returns around 4 PM. From the pier, it takes roughly 40 minutes to reach the first area. You visit Koh Wai, Koh Lao Ya Nai, and Koh Klum, with two snorkel stops where you can also swim toward shore. There is also about an hour at a beach for swimming and rest.

This is the better fit if you want a pleasant half-day on the water without committing to the longer run south. Families may prefer it because the day starts later, and children can build confidence in shallow water near a beach before trying an offshore snorkel stop. It also includes the chance to try simple open-sea fishing, a small extra that children especially enjoy.

The 4 Islands Tour starts earlier, at 9:30 AM, and usually finishes around 4:30 PM. The boat travels about 1.5 hours from the pier to Koh Rang National Marine Park, then visits Koh Yak Lek, Koh Mapring, Koh Rang, and Koh Yak Yai. Three locations offer about 40 minutes of snorkeling each, and Koh Rang includes about an hour to relax and swim at a white-sand beach.

I would choose the 4-island route if snorkeling is the main reason you came to Koh Chang. You get more time in the water and three reef locations close to one another around Koh Rang. The tradeoff is a longer first boat ride, an earlier pickup, and the extra national park charge.

The islands on the 4-island trip are not four large islands. Koh Rang is the main island, while Koh Yak Yai, Koh Yak Lek, and Koh Mapring are smaller islets nearby. That keeps the stops practical, but it also means you should not expect a long independent island walk at every location.

From west-coast hotel pickup to Bang Bao Pier

Pickup is one of the useful parts of this trip, but only if your hotel is on the correct side of Koh Chang. Shared-car pickup for the 3-island route runs roughly from 9 AM to 9:50 AM. For the 4-island route, expect pickup between 8 AM and 8:50 AM.

The service covers the west side of the island up to White Sand Beach. If you stay on the north or east side, book the option without transfers and arrange your own ride to the meeting point at Bang Bao Pier. The pickup schedule is tight, so do not treat the stated time as a rough suggestion. A driver may wait a few minutes, but after that you can be marked as a no-show.

You can also reach the meeting point independently. Parking is listed as free at the meeting point, though the information also notes a parking charge of around 70 baht if you arrive by your own car or motorbike. Bring cash and confirm the exact parking arrangement after booking.

At the pier, allow time for the walk from the parking area to the boat. It is not a step-out-of-the-car-and-board setup. The meeting-point picture is sent after booking, which helps because the pier area can be confusing.

What the big boat adds to the day

This is a big boat tour, not a fast little speedboat trip. That matters in two ways.

First, there is more room for sitting in shade or sun, and the boat has a toilet. You can find a place to settle during the longer ride and do not need to remain packed into one narrow row. The crew also serves lunch on board, along with water, coffee, and fruit.

Second, a larger boat does not always mean a quiet boat. At busy times, seating can feel crowded, and the ride can take longer than it would on a speedboat. On rough days, the boat still moves around. If you are prone to seasickness, take the crew’s warning seriously and bring suitable medication. One trip account described the motion as strong, especially in rainy-season conditions.

The ride itself is part of the outing, with views of the sea and smaller islands along the way. Still, the real value begins once you reach the water. If you dislike long boat transfers, the 3-island route is the safer choice.

The 4-island snorkeling stops

Koh Yak Lek and Koh Mapring

Koh Yak Lek and Koh Mapring are usually treated as water stops rather than beach visits. Plan on about 40 minutes at each, enough time to swim, look for fish, and inspect coral without feeling rushed.

The crew points out where to enter and where the fish are easiest to see. This is useful because reef areas can look similar from the surface, and a guide who knows the site can save you from swimming around without finding much. Some passengers also appreciated guides who stayed close to weaker swimmers and helped children feel safe in the water.

The snorkeling quality depends on sea conditions and your expectations. The water is often warm and clear, with plenty of fish and living coral. Yet it is not a substitute for a specialist coral trip in a famous reef destination. If your only goal is dramatic coral color, you may find some areas modest. The appeal is the combination of fish, reef, warm water, and several different stops.

You receive masks and life jackets. Fins are not included, so strong swimmers may want to bring their own if they have room. Without fins, swimming against current can take more effort.

Koh Rang National Marine Park and its beach

Koh Rang brings the national park setting and the main beach break. You get about an hour for free time, swimming, and rest on white sand beside clear water.

This is the stop to save energy for. After two snorkel sessions, you can get out of the water, sit on the beach, and enjoy the scenery without a mask pressed to your face. The sand can become hot, so water shoes or waterproof footwear are useful. They also help at some island landings, where the ground and rocks may be uncomfortable under bare feet.

The park entry fee is not included in the tour price. Set aside 200 baht per adult or 100 baht per child aged 5 to 9, usually paid in cash. That extra cost is small, but it changes the real price of the 4-island trip, especially for a family.

Koh Yak Yai

Koh Yak Yai provides the third snorkeling session, again around 40 minutes. By this point, you will have a good feel for the day’s pattern: enter the water, follow the guide’s suggested area, look for fish and coral, then return to the boat for the next stop.

Some people may find the reefs close together and the sites a little alike. I see that as a reasonable tradeoff for spending more time in the water rather than wasting the afternoon on long transfers between far-flung islands. You may see different fish and reef shapes at each location, but do not expect four completely different worlds.

The guides can be especially helpful here. Non-swimmers are allowed to remain on the boat, and the crew has helped people who were nervous in the water. Life jackets make floating easier, but this is still not a suitable activity for children under two, pregnant people, wheelchair users, or anyone with serious back problems.

What the 3-island route feels like

The shorter route visits Koh Wai, Koh Lao Ya Nai, and Koh Klum. It is a good compromise if you want islands and snorkeling but do not want the early start and longer ride to Koh Rang.

Two stops are set up for snorkeling, with the option to swim ashore. The separate one-hour beach stop gives the trip a slower middle section. You can swim in turquoise water, sit on the sand, and let children practice with their masks close to shore.

The fishing option adds a bit of variety. It is not the reason to book the tour, but it gives children and anyone who tires of snorkeling something else to do. The route also avoids the 4-island national park fee, which improves its value at the quoted price of $28 per person.

The compromise is less reef time. If you have snorkeled before and want the strongest underwater focus, choose four islands. If you are traveling with mixed ages, cautious swimmers, or people who mainly want a relaxed beach day, three islands may work better.

Lunch, fruit, and the practical comforts

The lunch is a basic Thai meal prepared on the boat, generally chicken-based. It is not a restaurant meal, but it is fresh, filling, and included in the price. Fruit such as watermelon and pineapple comes later, along with drinking water and coffee.

Tell the operator at least one day ahead if you need a vegetarian meal. A vegetarian and gluten-sensitive passenger was accommodated, but you should not leave special requests until boarding.

You can buy extra drinks and snacks on board, including beer, soda, noodles, and crisps. Bring cash for these, the park fee, and anything else at the pier. Pack snacks too, especially if you are traveling with young children.

The free underwater photo service is a nice bonus, but it needs a little effort from you. Tell the guide or photographer that you want your picture taken. The photographer captures both candid boat moments and underwater shots, but communication about the photo process may not always be clear.

How much value do you get for $28?

At $28 per person, the tour covers a lot: boat transport, guide, hotel pickup and return on the west coast, snorkeling mask, life jacket, lunch, fruit, water, coffee, toilet access, and an underwater photographer.

The 3-island route offers the strongest simple value because there is no national park charge. The 4-island route is still good value, but add the 200-baht adult park fee before comparing it with other Koh Chang tours.

You are paying for an organized day, not privacy. The boat may carry a sizable group, and a few people have found it crowded. The upside is that the crew handles transport, food, equipment, route planning, and safety. You do not need to rent a boat, find a reef, or arrange separate meals.

The tour has an overall rating of 4.3 from 723 ratings, with especially strong praise for organization, crew friendliness, snorkeling time, food, and boat space. The less flattering points are consistent too: limited coral color in some areas, no fins, occasional crowding, unclear photo instructions, and rough water when conditions turn.

Timing, weather, and what to pack

Weather can change quickly in Thailand, especially during monsoon season. Rain does not automatically cancel the trip, and clear water is still possible in wet weather. But if sea conditions are unsafe, the tour can be canceled, rescheduled, or fully refunded.

Big waves can make the boat ride bumpy. If you get seasick, sit where the motion feels manageable, look toward the horizon, and consider the medication offered by the crew. A towel, swimwear, sunscreen, sunglasses, and cash belong in your day bag.

I would also pack water shoes. They help with hot sand, rocky entries, and rough ground at island stops. Fins are optional and not provided, so bring them only if you already own a compact pair and care about swimming efficiency.

The boat offers covered seating, but sun protection remains your responsibility. Put sunscreen on before boarding and reapply after swimming.

Who should book this Koh Chang boat trip?

I would choose this tour for a family, a couple, or a first-time snorkeler who wants a straightforward day with transport and meals included. The crew’s help with children and nervous swimmers is a real advantage, though non-swimmers should understand that the main activity remains time on and in the water.

Choose the 3-island route if you want a shorter ride, a later start, a beach break, and the fishing option. Choose four islands if you want three snorkeling sessions around Koh Rang and do not mind the early morning, longer ride, and park fee.

I would not book it for a private-island experience, a quiet luxury boat, or a specialist coral expedition. The sites can feel similar, the boat can fill up, and the ride may be rough. But for $28 plus the 4-island park fee, you get a well-organized full day with good practical comforts and plenty of water time.

Should you book it?

Yes, if you want the easiest affordable way to see Koh Chang’s nearby islands. I would lean toward the 4-island tour for confident snorkelers and the 3-island tour for families or anyone who prefers a gentler day.

Book only after checking your hotel location and the sea forecast. Tell the crew about vegetarian food in advance, bring cash, ask for your underwater photos, and do not forget water shoes. Those small preparations will make a good-value boat trip much easier to enjoy.

FAQ

How long does the Koh Chang snorkel tour last?

The 3-island option runs from about 10:30 AM to 4 PM. The 4-island option runs from about 9:30 AM to 4:30 PM. Hotel pickup begins earlier than the boat departure.

What is included in the tour price?

The price includes the boat trip, guide, snorkeling mask, life jacket, toilet access, lunch, fruit, water, coffee, underwater photography, and hotel pickup and return from the west side of Koh Chang when that option is selected.

Is the national park fee included?

No. The 4-island trip requires an additional fee of 200 baht per adult or 100 baht per child aged 5 to 9. The 3-island trip has no national park fee.

Are fins included?

No. The tour provides snorkeling masks and life jackets, but fins are not listed as included.

Where is hotel pickup available?

Pickup and return are available on 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.

Can I request a vegetarian lunch?

Yes. Contact the operator at least one day before the tour. The standard lunch is chicken-based.

What happens if the weather is unsafe?

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