TDI A.N.D.P. The entry point into all technical diving.
TDI Advanced Nitrox + Deco P program (ANDP)
Start your technical diving journey with the TDI Advanced Nitrox and Decompression Procedures (AN/DP) course in Phuket, Thailand. This combined program is the foundation of all technical diving, teaching you how to safely plan and execute dives using multiple gases and staged decompression.
The TDI ANDP course is the most efficient and widely recommended pathway into technical diving, combining two essential certifications into one structured program.
What Is the TDI ANDP Course?
The TDI Advanced Nitrox + Decompression Procedures course combines:
- Advanced Nitrox → using high oxygen mixes (up to 100%)
- Decompression Procedures → planning and executing staged decompression dives
Together, these courses teach you how to:
- extend your dive time beyond no-decompression limits
- use multiple gas mixes safely
- conduct planned decompression stops
- manage gas switches and oxygen exposure
👉 This is where diving becomes planned, controlled, and technical.
Why Combine Advanced Nitrox and Decompression Procedures?
These two courses are designed to work together.
Advanced Nitrox Alone:
- teaches gas use up to 100% oxygen
- no staged decompression
Decompression Procedures Alone:
- requires advanced gas knowledge
- involves staged decompression
Combined as ANDP, you learn:
- how to plan decompression dives
- how to use oxygen for faster off-gassing
- how to manage multiple cylinders and gases
This creates a complete technical diving skillset.
Why Take the ANDP Course in Phuket?
Phuket is one of the best locations for technical training:
- warm water for long dives and decompression stops
- access to suitable dive sites
- real-world conditions for skill development
- efficient boat diving logistics
This allows you to train in conditions similar to real technical dives.
What You Will Learn
The TDI ANDP course focuses on gas management, decompression theory, and dive execution.
Theory Topics Include:
- decompression theory and models
- oxygen exposure and CNS limits
- gas planning and consumption rates
- dive tables and dive computers
- multi-gas dive planning
- risk management and contingency planning
Practical Skills Developed
This course introduces a completely new level of diving.
Skills Include:
- advanced buoyancy and trim
- gas switching procedures
- staged decompression execution
- deployment of DSMB (delayed surface marker buoy)
- emergency procedures and bailout planning
- team communication and coordination
Equipment Used During Training
Divers will use a technical diving configuration:
- twinset or sidemount system
- stage/decompression cylinders
- nitrox and oxygen gases
- multi-gas dive computer
- DSMB and reel
All equipment can be provided if required.
Real Challenges in ANDP Diving
This is where diving becomes significantly more complex.
Divers must manage:
- multiple gas mixes
- precise decompression stops
- increased task loading
- strict dive planning
- emergency scenarios
The course is designed to build confidence through structured progression.
Who Is This Course For?
The TDI ANDP course is ideal for:
- recreational divers moving into tech diving
- divers wanting longer bottom times
- photographers and videographers
- divers preparing for deeper courses (Trimix, CCR)
- anyone serious about advancing their diving
Course Prerequisites
To enrol, you must:
- Be at least 18 years old (15 with parental consent)
- Hold a Nitrox Diver certification (or equivalent)
- Have a minimum of 25 logged dives
- Course Structure (Minimum 4–5 Days)
- Day 1: Theory and workshops
- Day 2: Confined water / skills development
- Days 3–5: Open water decompression dives
Training builds progressively in complexity.
What Comes After ANDP?
Completing the TDI ANDP course opens the door to:
👉 This is the foundation of your technical diving career.
Why Choose Us for Your ANDP Course?
- experienced technical diving instructors
- real-world decompression diving experience
- small group training
- structured progression into advanced courses
- strong focus on safety and discipline
You will leave this course with the skills to plan and execute technical dives confidently.
Contact Us
Have questions or need help? Use the form to reach out and we will be in touch with you as quickly as possible.