Scuba Diving Day Trip at Koh Chang – 2 Dives

The most compelling part of this Koh Chang day trip is the choice between a large military wreck and the calm coral sites of Koh Rang National Park. You get two underwater sessions, a full day on the water, and a chance to see nudibranchs, tropical fish, coral, and perhaps a whale shark.

I like the maximum group size of four, which gives your guide room to help with gear and keep an eye on the group. I also like the practical package: equipment, hotel pickup, drinks, snacks, and buffet lunch are included, so you can focus on the sea rather than the day’s logistics.

The main consideration is that the advertised plan can vary by site. The trip is sold as two sessions, yet the HTMS Chang and Koh Rang programs may include extra reef, snorkel, or underwater stops. The national park fee is also extra, and you must show proof of certification.

Key points at a glance

• HTMS Chang wreck: Explore Thailand’s largest shipwreck, with the wreck section reaching about 18 meters above the structure in one reported itinerary.
• Koh Rang National Park: Expect calmer water, shallow reefs, coral gardens, tropical fish, and up to three underwater or snorkel stops.
• Small personal group: The boat accepts a maximum of four people, a useful setup if you want close support.
• Guides with different strengths: Oscar, Steve, Max, Chang, and Mr Cho have all led trips or helped guests with equipment and confidence.
• A full-service day: Transfers, gear, food, drinks, light refreshments, and a professional guide are included.
• Plan for the extra cost: The national park fee is not included, and extra underwater sessions may cost 1,000 baht.

Choosing between the HTMS Chang and Koh Rang

Your biggest decision is the destination. BB Divers runs daily outings toward the HTMS Chang wreck or Koh Rang National Park, and each offers a very different kind of day.

The HTMS Chang is the more dramatic option. This former military vessel is described as Thailand’s largest shipwreck, and its structure gives you something substantial to explore rather than a simple reef swim. You may see fish gathering around the hull, coral growth on the metal, and small creatures such as nudibranchs tucked into the wreck area.

The wreck is presented as suitable for divers of all levels, but I would not treat that as a substitute for checking your own comfort and qualification. One itinerary reached about 18 meters above the wreck, and an Advanced Open Water certificate was recommended for that particular visit. Ask BB Divers which part of the wreck you will visit and what certification or recent experience is expected.

Koh Rang offers a gentler day. This national park protects about 40 islands, with calm water and shallow reefs that work well for relaxed underwater exploring. You can expect coral, tropical fish, and clear structure below the boat, with some programs including three different underwater or snorkel stops.

I would choose Koh Rang if you have not been underwater for a while, prefer shallow sites, or want a less technical setting. I would choose the wreck if you are excited by ship structure and already feel comfortable with depth, current, and careful buoyancy around a large object.

The final destination may depend on sea conditions, group needs, and the operator’s schedule. You cannot assume you will get both locations in one day. If one site matters greatly to you, confirm the plan before booking.

What the 8-hour schedule feels like

The day begins at 8:00 a.m. at BB Divers, the PADI 5 Star Dive Center in Koh Chang. The listed address is 16/2 Moo 1, Koh Chang Tai, Trat 23170, Thailand. Free hotel pickup and drop-off are offered, which is helpful if your accommodation is not close to the center, but you should confirm your pickup time and location in advance.

Once at the center, expect the usual preparation: certification checks, equipment fitting, and a briefing about the day. You need to provide evidence of certification before taking part in this certified activity. If you have been out of the water for some time, tell the staff early. Steve is specifically noted for helping a returning diver refresh basic skills and regain confidence.

The boat then heads toward the selected site. The exact travel time is not provided, so I would keep the full day free rather than plan a tight afternoon appointment. The trip lasts about eight hours and ends back at the meeting point.

The underwater schedule is built around two sessions. At the wreck, you may spend time at the ship followed by reef sessions. At Koh Rang, the operator describes three different dive and snorkel stops, so the number of water entries may differ from the simple two-session headline. Extra sessions may be available for 1,000 baht, subject to the day’s plan.

That variation is worth understanding. The $130.39 price is not buying a fixed two-hour outing. It covers a full day with boat transport, equipment, food, and staff support. Still, you should ask exactly how many underwater sessions are included in your chosen program.

The HTMS Chang wreck, metal, coral, and marine life

The wreck is the trip’s most distinctive attraction. A large ship gives you scale, direction, and plenty to look at. Instead of drifting over one patch of reef, you can inspect the vessel’s outline and watch marine life claim its surfaces.

A wreck visit also rewards a slower pace. Your guide can point out openings, structural features, and small animals that are easy to miss when you are busy managing your air and position. Nudibranchs are among the possible highlights. These small sea slugs come in striking colors and patterns, but they are easy to overlook unless you move carefully.

The wreck option is not only about the ship. The day may include two additional reef sessions, adding coral and fish to the large metal structure. That combination gives you variety: one site for scale and exploration, then reef time for smaller details and color.

You should be honest about your experience. The operator describes the wreck as suitable for all levels, but depth and conditions can still matter. A guest’s reported visit reached 18 meters above the wreck and suggested Advanced Open Water training for that specific section. Certification rules, comfort, and current conditions are more important than trying to prove you can manage a site.

If you are rusty, ask for a refresher with your guide. Steve has helped returning divers review what they need before entering the water. The small group format should also make it easier to explain concerns before the boat leaves.

Koh Rang National Park for calmer reef time

Koh Rang is the softer choice. The park is known for calm water and shallow reefs, making it a good fit if you want to watch fish and coral without the more imposing presence of a wreck.

The park protects a wide collection of islands and reef sites. You may stop at several locations, with the day’s program including underwater and snorkel stops. That format keeps the outing moving and gives you more than one view of the park.

I like this option for families or mixed-experience groups, though every person taking part in the certified activity still needs to meet the operator’s requirements. One family outing included less experienced participants, and the guide spent time explaining procedures and helping with equipment. That kind of support can make a major difference when nerves are stronger than expected.

Do not expect every site to feel identical. Shallow reefs can be excellent for relaxed viewing, but they may not offer the same sense of adventure as a large wreck. If your priority is depth, structure, and the story of a sunken ship, Koh Rang may feel too gentle. If your priority is comfort and variety, it may be the better call.

The park fee is not included in the listed price. Add that cost to your budget before comparing this trip with other Koh Chang outings.

Guides, equipment, and the value of a four-person group

The maximum of four people is one of the strongest features here. On a boat with a large crowd, a guide has less time to check each mask, tank, and weight setup. With four people, you have a better chance of getting direct help before the first entry and useful attention underwater.

Several staff names appear in the operating team. Oscar is a boatmaster who has led trips to both the park and the military wreck. Steve has helped people returning after time away from scuba, while Max guided a wreck outing. Chang led a private two-person trip, and Mr Cho has been praised for equipment and service at the center.

You should not book based on a promised personal guide by name unless the operator confirms it. Staff assignments can change. The useful point is that you can ask for the kind of support you need: a refresher, help with equipment, a calm pace, or more attention around the wreck.

All necessary equipment is included. That saves you from renting separately, though you should still bring any personal items you prefer to use and tell the center about fit issues before departure. Specific equipment brands and models are not provided, so ask if you have special requirements.

The staff’s role matters as much as the kit. Good preparation means you spend less of the first session fiddling with straps and more time looking at the reef. It also makes a difference for families and anyone who feels out of practice.

Lunch, drinks, and the rhythm between sessions

A buffet lunch is included, along with drinks, free water or other beverages, and light snacks. That is more useful than it may sound. A full day at sea can leave you hungry, especially after carrying equipment and spending time in the water.

The meal also gives you a proper break between sessions. You can dry off, discuss what you saw, and reset before the next entry instead of rushing from one activity to another. The exact menu is not provided, so advise the operator of dietary requirements when you book.

One reported trip praised the food along with the boat and three underwater sessions. That does not guarantee a particular menu or number of stops, but it suggests the meal is treated as part of the day rather than an afterthought.

Snacks and drinks are included, but you may still want personal sun protection and anything you need for the boat. The supplied information does not specify what shade, towels, or personal items are available, so ask BB Divers if those details matter to you.

Is $130.39 a fair price?

At $130.39 per person, this is not the cheapest way to spend a day around Koh Chang. The value depends on how much of the package you would otherwise arrange yourself.

You receive hotel pickup and return, boat transport, professional staff, equipment, two planned underwater sessions, lunch, drinks, snacks, and a small group capped at four people. If you rented equipment, arranged transport, bought food, and joined a larger boat separately, the difference could narrow quickly.

The price also buys convenience. You do not need to find a separate center, organize a boat, or carry lunch plans through the day. The included support is especially useful if you are returning to scuba after a break.

Still, factor in the national park fee. The listed price does not cover it. Extra underwater sessions may cost 1,000 baht, so ask what is included in your selected route before paying.

I see the best value for certified divers who want a focused day and personal assistance. If you are only curious about scuba and do not hold the required certification, this is not the right product for you.

Practical details before you book

You can cancel free of charge up to 24 hours before the local start time for a full refund. Changes or cancellations made inside that window are not accepted for a refund.

Most people can participate, but this is a certified scuba activity, not a casual boat tour. Bring proof of certification and share dietary needs at booking. If you have not been underwater recently, request a refresher and ask which guide will be assigned.

The experience begins and ends at BB Divers, though hotel pickup and drop-off are offered. The maximum group size is four people. Confirmation is provided at booking, and the start time is 8:00 a.m.

The operator’s average booking lead time is about eight days. That is a useful hint for planning, especially if your Koh Chang stay is short. You do not need to book months ahead, but leaving it until the last morning could limit your choice of date or site.

Who should book this Koh Chang trip?

I would book this for a certified diver who wants a full day on the water without joining a large group. The wreck option suits you if you enjoy ship structure and feel ready for the depth involved. Koh Rang suits you if you prefer shallow reefs, calmer water, and several shorter stops.

It also works well for a family group with mixed confidence, provided everyone meets the participation requirements. The staff can spend more time helping with equipment and basic preparation because the group is so small.

I would hesitate if you need a guaranteed number of underwater sessions, a guaranteed guide, or a specific site regardless of weather and operating conditions. I would also skip it if you do not hold the required certification. Ask BB Divers to confirm the route, park fee, session count, and depth before you commit.

For the right person, the price is reasonable because it combines the boat, gear, meals, transfers, and close staff attention. Book it if you value a well-supported day and can accept that the sea, site, and final schedule may shape the plan.

FAQ

Where does the Koh Chang scuba trip start and end?

The trip starts and ends at BB Divers, PADI 5 Star Dive Center Koh Chang, at 16/2 Moo 1, Koh Chang Tai, Trat 23170, Thailand.

What time does the activity begin?

The listed start time is 8:00 a.m.

Is hotel pickup included?

Yes. Free hotel pickup and drop-off are included, but you should confirm your pickup details with the operator.

Do I need scuba certification?

Yes. Evidence of dive certification is required from everyone taking part in the certified scuba activity.

Is lunch included?

Yes. A buffet lunch, drinks, beverages, and light refreshments are included.

What destinations can the boat visit?

The trip may visit the HTMS Chang wreck or Koh Rang National Park. The chosen site can affect the number and style of underwater or snorkel stops.

Is the national park fee included?

No. National park fees are not included in the listed price.