Master sidemount/twinset configuration, buoyancy, trim, and gas planning
This course introduces recreational divers to the world of technical diving. You’ll dive with sidemount or twinset configurations, improve buoyancy, propulsion, trim, and dive planning – all within no-decompression limits.
Key Topics: Gas planning, technical gear setup, situational awareness, physics & physiology of tech diving.
Join our fun dives and explore vibrant coral reefs, fascinating critters, and majestic marine life — including the legendary HTMS Chang Wreck.
Use our dive site map to plan your adventure or dive deeper into our Marine Life Guide and see what awaits below the surface.
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 FacebookIntro to Tech is your entry point into the TDI system. Improve your diving precision and prepare for advanced technical programs like Deco Procedures or Extended Range.
💸 14,990.00 THB
The TDI Intro To Tech Course, introduces Technical diving to the recreational diver.
Ready to start your technical diving journey? Book now!
