TDI Advanced Wreck Diver – Master Overhead Diving
Course Overview
This course is designed for divers who want to safely penetrate wrecks in an overhead environment. You will learn proper guideline use, propulsion techniques, gas management and redundancy setups to explore areas beyond the light zone – or stay in the light zone with a flexible no-decompression training option.
Our training is conducted on the HTMS Chang, the largest wreck in Thailand, and includes additional training on T11 and PAK1 expeditions.
⚠️ Penetration Depth Limitation:
Penetration into overhead environments is limited by your current
certification depth. For example, if you’re a recreational diver
certified to 40 m, and enter the wreck at 32 m, your maximum
penetration distance is 8 m. The TDI Advanced Wreck certification
allows full penetration within these depth boundaries.
Recreational or Technical – This Course is for You
Already a certified Deep and Wreck Diver with 50+ logged dives? Or are you a TDI Advanced Nitrox or Decompression Procedures diver looking to sharpen your overhead environment skills?
Then join the TDI elite wreck diver team and take your exploration deeper, safer, and more precise than ever before.
Choose Your Training Focus
Compare both available training styles below. Both lead to full TDI Advanced Wreck certification.
💡 Note: Option 2 (NO Deco) is easier to schedule and
ideal during high season or busy boat days. Deco dives may not always
be feasible due to logistics and group planning.
✅ Regardless of your choice – with or without decompression – your
TDI Advanced Wreck Diver certification remains the same and carries no
limitations or differences.
What's Included?
- 4,5-day TDI Advanced Wreck Dive course
- 6 overhead training dives from the boat
- Professional instructor (1-on-1 to max. 1-on-4)
- All scuba equipment included
- Full digital materials or printed manual
- Lunch, fruits, soft drinks, tea/coffee
- Hotel pickup (available in selected areas of Koh Chang)
⚠️ Optional
- Exclusive for our students & dive guests
- Get a special discount on selected equipment
- Mask, snorkel, fins & more available online
- Book this equipment together with your course or trip and save instantly!
- Offer valid only for combined online bookings on our website.
- Dive accident insurance – recommended for all divers
- GoPro rental available for certified divers
What can you discover?
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.
What other divers discovered
Real reviews and experiences from our guests – see what others found on their diving adventures with us!
Are You Ready for the Wreck Zone?
This course gives you the skills and confidence to perform full wreck penetration – with a setup that matches your dive style, whether recreational or technical.
- ✅ Full penetration with or without deco
- ✅ Real wrecks: HTMS Chang, T11 & PAK1
- ✅ Technical-grade wreck training tailored to your level
TDI Advanced Wreck Diver
💸 35,000.00 THB
Full wreck penetration with deco. Full tech gear, sidemount/twinset + stage. 6 dives. TDI certification included
TDI Advanced Wreck Diver
💸 18,870.00 THB
Full wreck penetration in rec setup + stage tank. No deco. Flexible and high-season friendly. 6 dives.
Book your Advanced Wreck Diver Course now!
📩 Book your TDI adv.Wreck via EmailStudent Download
Instructor Tools Download
- Training rec.
- Hand Signals Chart (PDF)
- DCS Evaluation Slate (PDF)
- Emergency Plan
- Accident_Incident_Report
