Wrecks, reefs & pinnacles – discover Thailand's top dive spots with us.
On our guided scuba diving day trips you’ll discover the top dive sites in Koh Chang’s national marine park – from colorful shallow reefs to thrilling wrecks and deep pinnacles. Whether you enjoy relaxed fun dives or want to complete a certification course, our professional SDI, TDI and PADI instructors take care of your safety and training in small groups. Don’t miss the famous HTMS Chang wreck.
Want to prepare like a pro? Check our blog: How‑to dive guides, marine life spotters’ guides, and scuba knowledge & theory. For practical trip info, visit the Koh Chang FAQs and our diving in Koh Chang FAQ. Plan your next adventure and find the right site, trip, or course in minutes.
Explore Koh Chang's top dive sites with our dive site map. From wreck dives at the HTMS Chang to coral reefs like Hin Luk Bat.
Dive at Hin Raab North, Koh Chang's hidden treasure. Spot reef sharks, explore coral canyons, and experience vibrant marine life. Book fun dives and courses!
Discover Hin Sam Sao, Koh Chang's hidden gem. Explore coral gardens, shallow reefs, and marine life like stingrays and moray eels. Book fun dives today!
Dive at Hin Luk Bat, Koh Chang's top-rated dive site. Swim through coral walls, spot clownfish, and explore vibrant anemone fields. Book your fun dive now!
Dive into the HTMS Chang, Thailand's largest shipwreck. Explore cargo holds, marine life, and adventure. Wreck diving courses available at Koh Chang.
Dive into the Phutthayotfa Chulalok frigate wreck near Koh Chang. At 40 meters depth, this 134-meter-long warship offers an unforgettable experience for advanced and technical divers
Dive into Blueberry Hill, Koh Chang's hidden gem. Explore coral canyons, tropical fish, and stunning pinnacles. Perfect for fun dives and scuba courses.
Discover the T11 wreck, a small patrol boat resting at 18m depth. Perfect for wreck diving beginners and marine life encounters.
Dive at Secret Reef, Koh Chang's hidden treasure. Explore stunning coral canyons, spot moray eels, stingrays, and discover the mystery of the ancient teapot.
Dive at Hin Raab South, Koh Chang's iconic reef dive. Spot moray eels, blue-spotted rays, triggerfish, and turtles while exploring stunning coral gardens.
Dive at Hin Rua Tek, Koh Chang's famous coral wall. Explore hidden crevices, spot reef sharks, stingrays, barracudas, and stunning marine life.
Explore Koh Rang Pinnacle, a deep dive site at Koh Chang's Marine Park. Dive 30m deep, spot eagle rays, giant trevallies, and vibrant coral gardens.
Dive Hin Pray Nam at Koh Chang. Discover coral walls, reef sharks & stingrays. A must-dive site for lovers of vibrant Thai marine life.
Dive into the Koho Maru 5 Pak1, a rare deep wreck near Koh Chang. Discover its unique history and challenge your technical diving skills.
Join hundreds of happy divers who've explored the underwater world of Koh Chang with us. From first-time try dives to deep wreck adventures – discover why Chang Diving is trusted since 2005. ★★★★★
Chang Diving Center offers a remarkable diving experience with exceptional instructors like Andy and Pern, who ensure a safe and enjoyable journey. Guests appreciate the knowledgeable team, excellent training, and a welcoming atmosphere. The center's well-organized trips and attention to detail, along with thoughtfully prepared onboard amenities, make it a standout choice for divers of all levels.
See reviews or write your own
“Just finished my Deep Diver and Wreck Specialty courses here with Instructor Pern – absolutely amazing experience from start to finish. Safety was always the priority, but every dive was also genuinely fun. Can't recommend Chang Diving and Instructor Pern enough.”
Read more on Google“I completed my Open Water course at Chang Diving Center and everything was perfectly organized. Great service, a very friendly and professional team, and an excellent instructor. My instructor Pern was extremely skilled, calm, and in full control at all times. Highly recommended – 10/10.”
Read more on TripAdvisor“This was my first sea dive after having qualified and the staff at Chang Diving were superb and professional ensuring my experience was the best – in fact I booked a second dive with them.”
Read more on FacebookBook your next dive, expand your knowledge, or plan your trip. Courses, day trips, blog articles, and weather info – everything in one place.
Discover Koh Chang's underwater species: barracudas, nudibranchs, turtles, whale sharks and more. Learn where and when to spot them.
Expand your scuba skills: gas consumption, nitrox, dive computers, safety stops and buddy systems. From beginner to pro.
Real stories from behind the scenes: boat upgrades, eco-practices, safety standards and no-nonsense facts – from divers, for divers.
Practical advice to dive safer, use less air, and improve your underwater performance. Buoyancy, equalization, gear hacks.
Step-by-step tutorials: Try Dives, Open Water, Advanced, Rescue, specialties and packages. What to expect, schedules, dive sites.
Plan your dive trip: Gulf vs Andaman, best dive sites, when to visit, logistics, beaches and accommodations on Koh Chang.
From Try Dive to Technical Diver – Open Water, Advanced, Rescue, specialties and professional training. SDI, TDI, PADI.
Try Dives, Fun Dives, Scuba Review, Snorkeling – daily trips to the best dive sites. Small groups, expert guides.
When to dive, monsoon seasons, visibility and sea conditions. Plan your trip for the best diving weather on Koh Chang.
