Full-day boat trips to Koh Chang’s best dive sites – Try Dive, Fun Dives, snorkeling and more. Small groups with TDI, SDI and PADI instructors.
Discover the underwater beauty of Koh Chang’s top dive sites on our full-day trips into Mu Koh Chang National Marine Park. Whether you want to try scuba for the first time with a Try Dive, refresh your skills with a Refresher Course, or enjoy guided Fun Dives, our SDI, TDI and PADI instructors make every trip safe, fun, and unforgettable.
On your adventure you’ll encounter tropical marine life, vibrant coral gardens, and—if conditions allow—even the famous HTMS Chang Wreck. Curious about what you might spot? From colorful reef fish and barracudas to the occasional whale shark – every dive site offers a new highlight.
Our trips take place aboard our custom dive boat Pirm Udom Sub, designed for comfort and safety. Spacious decks, shaded areas, fresh Thai meals, and modern dive facilities make your day at sea enjoyable. For extended bottom times, Nitrox is available on request.
Every day trip is carefully planned – from sunrise departure to a relaxed return. We keep groups small, provide full equipment if needed, and offer extras like diving insurance and GoPro rental to capture your memories. Families, couples, and solo travelers are all welcome.
Want to know more about the dive sites we visit? Or how our courses connect with day trips? Check out our FAQs for details about dive sites, what’s included, and how to prepare for your adventure.
🌊 Book your Koh Chang scuba diving day trip today – safe diving, stunning reefs, and small groups since 2005!
➡️ Join our guided fun dives in Koh Chang – small groups, coral reefs, wreck diving, marine life & top-quality scuba gear. Book online now!
💸 Starting from 3,290 THB
➡️ Try scuba diving on Koh Chang with 2 boat dives – no license needed! Ideal for beginners. Full equipment & instructor included.
💸 Starting from 4,890 THB
➡️ Haven't dived in a while? Join our 1-day Scuba Review with 2 dives, theory refresh, and instructor. Full gear & lunch included.
💸 Starting from 3,950 THB
➡️ Experience snorkeling on Koh Chang: Day trips with our spacious dive boat, including 2–3 stops at stunning coral reefs. Book now!
💸 Starting from 999 THB
➡️ dive accident insurance Koh Chang, DAN insurance Thailand, scuba diving safety, short-term dive insurance, dive safety Koh Chang
💸 Starting from 750 THB
➡️ We have the GoPro HERO 7 Black for Rent. For your best Holiday memories with Chang Diving Center on Koh Chang, Thailand.
💸 Starting from 700 THB
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.
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“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 FacebookExpand your diving knowledge with our blog: marine life, scuba skills, how-to guides, tips, travel advice, and honest insights from our dive center.
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.
Explore all 13 dive sites: HTMS Chang wreck, reefs, pinnacles and more. Depths, marine life and what to expect at each spot.
When to dive, monsoon seasons, visibility and sea conditions. Plan your trip for the best diving weather on Koh Chang.
