Who can join TDI Advanced Wreck?

AOWD or equivalent + 50+ logged dives + wreck certification (recreational Deep + Wreck, or TDI Advanced Nitrox/Deco Procedures). Age 18+ implied.

How much does TDI Advanced Wreck cost?

Tech path — Package A (extended): 34,990 THB (6 overhead training dives + 6 fun dives = 12 boat dives). Package B (course only): 24,990 THB (6 training dives). Rec path (no deco) — Package A: 20,990 THB (6 training + 6 fun dives = 12). Package B: 18,990 THB (6 training dives). Fun dives = recreational boat dives, not graded course skills. Same TDI certification for all. Typically 3–6 days on Koh Chang; packages confirmed when you book.

What is included in TDI Advanced Wreck?

Course time on Koh Chang is typically 3–6 days depending on boat schedule. Six overhead training dives are required for certification; extended packages add six fun dives (recreational boat dives, 12 total). Professional instructor (max 4 students), scuba equipment for the course, materials, lunch, fruits, drinks, hotel pickup where offered.

Where does TDI Advanced Wreck training take place?

On the HTMS Chang (Thailand's largest wreck), T11, and PAK1 – three named wrecks at Koh Chang.

TDI Advanced Wreck Koh Chang – 3–6 days, from 18,990 THB

Name: TDI Advanced Wreck Koh Chang – 3–6 days, from 18,990 THB | Chang Diving
Price: 34990 THB
Availability: InStock
Rating: 4.8 (171 reviews)

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 Path

Compare the tech path (deco possible) and recreational path (NDL only) below. Both lead to the same full TDI Advanced Wreck Diver certification.

Terms: Training dives = overhead skills dives that count toward your TDI Advanced Wreck. Fun dives = extra recreational boat dives (not graded course skills).

Feature	Tech path: full penetration + deco possible	Rec path: full penetration, NDL only (no deco)
Certification	TDI Advanced Wreck Diver	TDI Advanced Wreck Diver
Environment	Overhead diving with full penetration	Overhead diving with full penetration
Decompression	Included (planned staged deco possible)	Not included (NDL dives only)
Required Gear	Tech setup (sidemount/twinset + deco stage)	Rec gear + one stage tank
Boat dives	6 overhead training dives (required). Optional packages add 6 fun dives (12 boat dives total) — see pricing.	6 overhead training dives (required). Optional packages add 6 fun dives (12 boat dives total) — see pricing.
Duration	Typically 3–6 days on Koh Chang (boat plan & season)	Typically 3–6 days on Koh Chang (boat plan & season)
Prerequisites	AOWD or equivalent, 50+ dives, wreck certification

💡 Note: The rec path is often easier to schedule in high season. Planned deco is not always possible on every boat day — we align training with safe logistics. Package A (extended) vs Package B (course only) depends on season and boat schedule; we confirm when you book.

✅ 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?

TDI Advanced Wreck course — typically 3–6 days on Koh Chang, depending on boat plan, season, and dive package
6 overhead training dives from the boat (certification standard); optional packages add +6 fun dives (12 boat dives total) — see pricing boxes below
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

TDI Advanced Wreck Diver training inside HTMS Chang overhead environment

Technical diving equipment setup for advanced wreck penetration training

Diver using safety line and guideline for overhead wreck navigation

Advanced wreck divers practicing gas management in confined wreck spaces

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 — Tech setup

Package A (extended) — 💸 34,990.00 THB

Full wreck penetration with deco when conditions and logistics allow. Full tech gear (sidemount or twinset + stage). 6 overhead training dives + 6 fun dives (recreational boat dives) = 12 boat dives total. TDI certification included.

Package B (course only) — 💸 24,990.00 THB

Same training focus: full penetration, deco possible as conditions allow. Full tech gear, sidemount/twinset + stage. 6 overhead training dives. TDI certification included.

Packages depend on season and boat schedule — we confirm what is available when you book.

TDI Advanced Wreck Diver — Rec setup (no deco)

Package A (extended) — 💸 20,990.00 THB

Full wreck penetration in recreational configuration + stage tank. No decompression (NDL only). Flexible and high-season friendly. 6 overhead training dives + 6 fun dives (recreational boat dives) = 12 boat dives total. TDI certification included.

Package B (course only) — 💸 18,990.00 THB

Full penetration in rec setup + stage. No deco. 6 overhead training dives. TDI certification included.

Packages depend on season and boat schedule — we confirm what is available when you book.

Book your Advanced Wreck Diver Course now!

Group offer: Extra 5% discount when 2 or more people book the same course together.

📩 Book Now

TDI Advanced Wreck Diver – Master Overhead Diving

TDI Advanced Wreck Diver – Master Overhead Diving

Course Overview

Recreational or Technical – This Course is for You

Choose Your Training Path

What's Included?

⚠️ Optional

What can you discover?

What other divers discovered

Are You Ready for the Wreck Zone?

TDI Advanced Wreck Diver — Tech setup

TDI Advanced Wreck Diver — Rec setup (no deco)

Student Download

Instructor Tools Download