REVIEW · THAILAND
Scuba Diving Day Trip at Koh Chang – 2 Dives
Koh Chang rewards curious swimmers. I like the small maximum group of four, which gives you more personal help, and I like that the day includes equipment, lunch, drinks, snacks, and hotel transfers. The main point to check is the itinerary: it is sold as a two-dive day, yet the site descriptions also mention extra reef stops, so confirm the exact plan before booking.
The day is built for certified divers, with two very different choices: the large HTMS Chang wreck or the calmer reefs of Koh Rang National Park. It begins at 8 a.m. and lasts about eight hours. One caution for wreck fans: although HTMS Chang is described as suitable for all levels, one recent guest was advised that an 18-meter section is better suited to Advanced Open Water certification.
Key points to know before you book

- A maximum of four people keeps the day personal and makes it easier for the guide to watch your comfort and air use.
- HTMS Chang offers a major wreck experience, with a towering structure and marine life around Thailand’s largest shipwreck.
- Koh Rang National Park is the calmer option, with shallow reefs, protected waters, coral gardens, and several dive or snorkel stops.
- Oscar, Steve, Max, Mr. Cho, and Chang have all led highly praised trips, with special attention given to safety, equipment, and nervous or less experienced certified divers.
- Lunch, drinks, snacks, gear, transfers, and a professional guide are included, though the national park fee is extra.
- The $130.39 price is strongest for convenience, especially if you need gear and hotel transport, but you should confirm how many underwater sessions your chosen route includes.
What the Koh Chang day actually looks like

Your day starts at BB Divers, a PADI 5 Star Dive Center at 16/2 Moo 1, Koh Chang Tai. The scheduled start is 8 a.m., with hotel pickup and return transport included. The exact pickup arrangement is not spelled out, so I would give the operator your hotel details when booking and confirm the pickup time.
From there, the boat heads toward one of two main areas. The choice depends on conditions, the day’s plan, and the route assigned to your group. You may go to HTMS Chang, or you may spend the day around Koh Rang National Park.
The outing lasts about eight hours, so this is not a quick morning activity. You should expect a full day built around time on the boat, two main underwater sessions, surface breaks, food, and the return trip. Bring only what you need, since the operator supplies the core gear and refreshments.
The experience is aimed at certified divers. You must show proof of certification, and that rule matters. This is not an introductory lesson for someone who has never used scuba equipment. If you have not been underwater for a while, tell the staff ahead of time. Steve has helped a returning diver refresh the basics, and that sort of support can make a big difference.
A few more dives around Thailand worth comparing
- Ko Tao: Try Scuba Diving 1-Day Experience
★ 4.8 · 452 reviews - Koh Tao 2-Dive Day Trip from Koh Samui for certified divers
★ 5.0 · 86 reviews - Premium Guided Scuba Diving Day Trip for Certified Divers
★ 5.0 · 32 reviews
Choosing between HTMS Chang and Koh Rang
The two routes offer very different kinds of excitement. HTMS Chang is the dramatic choice. Koh Rang is the easiergoing choice, with a stronger focus on coral, fish, and calm water.
If your main goal is a wreck, ask specifically for the HTMS Chang route. If you prefer shallow reefs and more relaxed conditions, Koh Rang may be the better match. You may not be able to choose with complete certainty, since conditions and daily operations affect the final plan, but it is worth stating your preference early.
The descriptions use slightly different wording about the number of underwater stops. The product is presented as a two-dive trip, while the HTMS Chang plan refers to the wreck plus two reef dives, and the Koh Rang plan describes three dive and snorkel stops. That could mean different route formats, or it could reflect optional additional sessions. Ask BB Divers exactly what is included on your date. Additional dives may be available for 1,000 baht.
Seeing the HTMS Chang wreck

HTMS Chang is the headline attraction for many certified divers. It is described as the largest shipwreck in Thailand, and its size gives the underwater visit a sense of scale that a small reef cannot match. You can expect to see the ship’s structure rising around you, with fish and other sea life using the wreck as shelter.
The wreck is not just a single quick stop. The planned route combines the ship with reef sessions, giving you a useful mix of man-made structure and coral habitat. That variety helps if you want more than a wreck photograph. You get time to inspect the ship and then shift your attention to smaller underwater life.
One guest completed a wreck session at around 18 meters and suggested Advanced Open Water certification for that part of the site. This is worth taking seriously, even though the general description calls the wreck suitable for divers of all levels. Certification level, recent experience, comfort with depth, and the guide’s judgment all matter. Ask which sections you will visit and how deep the group is expected to go.
You should also tell the guide if you are rusty, anxious, or unsure about wreck environments. Steve received particular praise for helping someone regain confidence after time away from scuba. The small group gives the staff a better chance to adjust the pace, explain equipment, and keep an eye on each diver.
Exploring Koh Rang National Park

Koh Rang National Park offers a softer alternative to the wreck. The protected marine area includes 40 islands, and the route is known for calm water and shallow reefs. You can expect colorful coral, tropical fish, and open underwater views rather than the enclosed structure of a ship.
This route suits you if you want a less demanding day or if you are more interested in coral gardens than metal corridors. It also works well for mixed groups, since the plan includes both scuba and snorkel stops. Someone in your party who does not want every session underwater may find this format more flexible.
The park route is described as including three different dive and snorkel stops. Again, confirm how those stops fit with the advertised two-dive package. Some may be optional, some may be snorkeling points, and some may form part of a longer route. The operator can give you the clearest answer for your date.
The protected setting also gives the day a broader appeal. You are not simply going out to tick off one famous site. You may see nudibranchs, tropical fish, coral growth, and, if conditions are lucky, whale sharks. Whale shark sightings are never something to treat as guaranteed, so consider them a pleasant possibility rather than a promise.
Same coastline, a very different dive:
- Full-Day Beginner Scuba Course with Private Tuition, Racha Yai
★ 5.0 · 368 reviews - Phuket: Scuba Diving Maithon Or Racha Islands For All Levels
★ 4.8 · 245 reviews - Scuba Dive in Koh Lanta, Thailand
★ 5.0 · 212 reviews - Phuket: Discover Scuba Diving to Racha Yai Island
★ 4.9 · 173 reviews
The boat day between underwater sessions
A full-day boat trip can be as important as the time below the surface. After the first session, you will have a surface interval, food, drinks, and time to rest before the next part of the route.
The buffet lunch is included, along with free drinks and light snacks. You should advise the operator about dietary needs when booking. No menu details are provided, so anyone with strict dietary requirements should confirm what can be prepared rather than relying on the word buffet alone.
Several people have praised the boat crew and food, with Oscar receiving repeated appreciation as boatmaster. The crew has also been described as helpful and accommodating. That matters on a scuba day, when small practical details such as equipment handling, entry support, and a calm briefing can affect the whole mood.
The boat is also where you will notice the limits of the trip. Eight hours is a long time if you dislike boat travel or want a tightly packed sightseeing schedule. You should plan your day around this outing instead of trying to squeeze in another major activity afterward.
Equipment, guides, and personal attention
All necessary equipment is included. That is a real part of the value, especially if you are visiting Koh Chang without your own mask, regulator, buoyancy gear, tank, or other standard equipment. Several people have praised the condition of the equipment, and one guest singled out Steve and Mr. Cho for good service and well-maintained gear.
Still, I would tell you to bring your own mask and other personal items if you have them and prefer a familiar fit. The operator supplies the equipment, but personal comfort varies. If you need a special size or have a particular equipment concern, mention it before the morning departure.
The small group is one of the strongest features here. With no more than four people, you are not placed in a large crowd with widely different abilities. A guide can give more direct instructions, help with setup, and notice when someone is uncomfortable.
The staff names that come up most often in the available feedback are Oscar, Steve, Max, Chang, and Mr. Cho. Max guided a wreck outing, Steve helped a diver returning after a break, and Chang led a private two-person trip. Those details suggest a team that pays attention to different levels of confidence, though your guide will depend on the day.
Is $130.39 a fair price?
At $130.39 per person, this is not the cheapest way to spend a day around Koh Chang. It becomes easier to justify when you add up the included equipment, professional guide, boat outing, lunch, drinks, snacks, hotel pickup, and return transport.
The price is especially sensible if you do not own scuba gear or if arranging transport to the pier would be difficult. You are paying for a packaged day with fewer moving parts. The group cap of four also adds value, since individual attention is usually harder to find on a large boat.
The value is less clear if you own all your gear, have your own transport, and only want a short session. In that case, compare the price with local package rates and ask about the cost of extra sessions. The advertised package is for two dives, with additional underwater time listed at 1,000 baht.
A national park fee is not included. Ask how much it is and whether it is payable in cash or by another method. That small extra cost will not change the whole budget, but it is better to know before departure.
Who should book this trip?

I would recommend this experience to certified divers who want a full day rather than a quick outing. It suits you particularly well if you value a small group, need rental equipment, want hotel transfers, and like having food and drinks handled for you.
The HTMS Chang route is best for someone who enjoys wrecks and feels comfortable with the depth and conditions. If you are newly certified, rusty, or uncertain about deeper water, ask detailed questions before choosing it. The description may call the wreck suitable for all levels, but the 18-meter note means you should not assume every section will feel easy.
Koh Rang is the better fit for a relaxed day among reefs. It may also suit families or groups with different comfort levels because the route includes snorkel stops. Remember, however, that all scuba participants still need certification.
This is not the right choice for a first-ever scuba experience. It is also not ideal if you want complete control over every site, since the final route can depend on the day’s operation and conditions. The operator confirms bookings immediately, and free cancellation is available until 24 hours before the start time. Changes or cancellations inside that window are not accepted for a refund.
Should you book the Koh Chang two-dive trip?
Yes, if you are certified and want a well-supported full day with a very small group. I especially like the mix of a major wreck or protected reefs, included gear and meals, hotel transport, and staff who have shown patience with both experienced and returning divers.
Before paying, ask three questions: Is the day definitely going to HTMS Chang or Koh Rang, how many underwater sessions are included, and what certification level is expected for the wreck section? If the answers fit your experience, $130.39 is a fair price for the convenience and personal service.
If your priority is a calm reef day, request Koh Rang. If the wreck is the reason you are coming, confirm the depth and route. Those few questions will help you choose the right version of the day instead of simply booking the name and hoping for the best.
FAQ
Where does the experience begin?
It begins at BB Divers, a PADI 5 Star Dive Center at 16/2 Moo 1, Koh Chang Tai, Ko Chang, Thailand.
What time does the trip start?
The scheduled start time is 8:00 a.m.
How long does the experience last?
The full day lasts approximately eight hours.
Is hotel pickup included?
Yes. Hotel pickup and drop-off are included.
Is scuba equipment provided?
Yes. Use of the necessary equipment is included.
Do I need scuba certification?
Yes. Proof of dive certification is required from everyone taking part in the certified scuba activity.
What dive sites may be visited?
The main options are the HTMS Chang shipwreck and Koh Rang National Park.
Is lunch included?
Yes. A buffet lunch is included, along with drinks and light refreshments.
Is the national park fee included?
No. National park fees are not included in the listed price.
Can I book an additional dive?
Additional dives may be available for an extra 1,000 baht.
What is the maximum group size?
The activity has a maximum of four participants.
Can I cancel for a full refund?
Yes. You can cancel at least 24 hours before the local start time for a full refund. Cancellations or changes made less than 24 hours before departure are not accepted for a refund.
New dives around Thailand
- Krabi: Freediving and Snorkeling at Yawasam and Talu Island★ 3.9 · 38 reviews
- Phuket: Racha Island Snorkeling or Scuba Diving Tour★ 4.3 · 70 reviews
- Freediving in Phuket – SSI – AIDA – Molchanovs – PADI★ 5.0 · 26 reviews
- SSI | Padi Open Water Course in Phuket★ 5.0 · 66 reviews
- Phuket Scuba Diving Maiton Private Island Small Group or Snorkel★ 5.0 · 9 reviews
- From Pattaya: Snorkeling or Beginner Scuba Diving Tour★ 4.1 · 68 reviews
- 3 Fun Dives King Cruiser Wreck and Koh DokMai for Certified diver★ 5.0 · 10 reviews
- 3 Fun Dives in Racha Yai and Racha Noi for Certified Divers★ 5.0 · 15 reviews
Scuba Diving, compared.

Great Barrier Reef Snorkeling and Diving Cruise from Cairns
Read our review →
First-Time Scuba Diving in Honolulu + Free Videos
Read our review →
Silfra: Diving Between Tectonic Plates – Meet on Location
Read our review →
Ocean Freedom Great Barrier Reef Luxury Snorkel and Dive Cruise
Read our review →
Beginner Scuba Diving with Turtles and Videos, San Juan
Read our review →
Tenerife: Your First Scuba Diving Experience in Turtle Area
Read our review →Browse the lists this tour appears in


