The TDI Advanced Nitrox & Decompression Procedures courses are designed to take divers beyond recreational limits by introducing the use of enriched air nitrox mixtures up to 100% oxygen and the skills required to conduct staged decompression dives. These courses focus on advanced dive planning, gas management, equipment configuration, and emergency procedures—building a strong foundation for deeper, longer, and more technical dives.

The course will be done with a mixture of cenote diving at sites like Chikin Ha and Yaakun just 20 minutes south of Playa del Carmen and ocean diving on the local reefs, providing ideal training conditions in stunning environments.

Course Topics Include:

• Use of nitrox mixtures from EAN21 to 100% oxygen

• Dive planning for staged decompression dives

• Oxygen exposure tracking and limits (OTU and CNS)

• Equipment configuration for technical diving

• Proper buoyancy, trim, and propulsion for overhead or deep environments

• Gas switching procedures and decompression gas management

• Decompression theory and use of planning software

• Emergency procedures and team protocols for deco dives

Course Structure:

• Academic Sessions: Covering advanced dive theory, oxygen physiology, gas planning, and decompression strategies

• Confined Water Training: Focused on equipment configuration, gas switches, and foundational skills in a controlled environment

• Open Water Dives: Typically 6 dives with staged decompression, emphasizing precision, discipline, and effective team diving

Prerequisites:

• Minimum age: 18 years old

• Minimum certification: TDI Intro to Tech, TDI Sidemount or equivalent

• Minimum of 50 logged dives

Certification Outcome:
Upon successful completion, divers will be certified to use nitrox mixes up to 100% oxygen and conduct staged decompression dives to a maximum depth of 45 meters/150 feet. These courses are essential for anyone looking to advance further into technical diving such as Extended Range and Trimix.