TDI · CDAA · CCR · Cave

Technical Diving Courses Melbourne

From foundational tech skills to decompression, trimix, CCR and cave diving pathways.
Build the skills, discipline and experience required for deeper, longer and more complex dives. From Intro to Tech and sidemount through to decompression, trimix, CCR and cave training, our technical diving courses are designed for divers who want to progress properly, not rush the process.
TDI Technical Training CDAA Cave Pathways Trimix & CCR Support Mornington Peninsula
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Technical scuba diver training in Melbourne
Progression with purpose. Technical diving is built through discipline, equipment control, gas planning and real-world decision making.
Technical Diver Development

Build skills.
Extend limits.
Dive with purpose.

Technical diving is not a single certification. It is a progression built through experience, discipline, equipment control, gas management and decision making under increasingly complex conditions. Our Melbourne technical diving pathways are designed to help divers progress properly through foundational technical skills, decompression procedures, mixed gas diving, CCR systems and cave environments.
01

Foundations

Develop buoyancy, trim, propulsion, equipment configuration and team awareness through structured foundational technical training.
Intro to Tech
TDI Sidemount
02

Decompression

Learn staged decompression procedures, accelerated decompression strategies and advanced gas planning for extended dive profiles.
Advanced Nitrox & Deco Procedures
Helitrox Diver
03

Mixed Gas

Progress into deeper technical dives using helium-based breathing gases, advanced planning strategies and expanded decompression requirements.
Trimix Diver 60m
Advanced Technical Pathways
04

CCR & Cave

Explore advanced environments and closed circuit systems through structured rebreather and cave diving training pathways.
Halcyon Rebreather
CDAA Basic Cave
CDAA Cave Diver
Technical & Cave Diving Training

Technical diving pathways built for real progression.

From foundational technical diving skills through to decompression, trimix, CCR and cave environments, our technical diving courses are designed for divers who want structured progression, real-world experience and long-term development.

TDI Technical Diving Courses

Develop the skills required for deeper dives, decompression procedures, mixed gas diving and advanced equipment configuration through progressive TDI technical training pathways.
Intro to Tech
TDI Technical

Intro to Tech

Build foundational technical diving skills including trim, buoyancy, propulsion and equipment configuration.
Prerequisites
Open Water certification and recent diving experience.
TDI Sidemount
TDI Technical

TDI Sidemount

Learn streamlined sidemount equipment configuration, advanced buoyancy control, trim, propulsion techniques and gas management through structured TDI sidemount training. This course is ideal for divers looking to improve flexibility, equipment access and overall underwater control for recreational and technical diving pathways.
Prerequisites
Open Water certification, good buoyancy control and recent diving experience recommended.
Advanced Nitrox & Decompression Procedures
TDI ANDP

Advanced Nitrox & Decompression Procedures

Develop the knowledge and practical skills required for staged decompression diving using enriched air nitrox and decompression gases. The TDI Advanced Nitrox & Decompression Procedures course introduces advanced dive planning, gas management, decompression strategies, stage cylinder handling and team-based technical diving procedures for extended dive profiles.
Prerequisites
Advanced Open Water certification, Nitrox certification and recent diving experience recommended. Divers should be comfortable with buoyancy control and basic dive planning before entering decompression training.
TDI Extended Range
TDI Technical

TDI Extended Range

Expand beyond entry-level decompression training through advanced technical diving procedures designed for deeper dives, increased decompression obligations and more complex dive planning. The TDI Extended Range course develops advanced buoyancy control, team procedures, gas management and technical diving capability for extended range diving environments.
Prerequisites
Advanced Nitrox & Decompression Procedures certification or equivalent technical diving experience with strong buoyancy control and decompression diving proficiency recommended.
TDI Helitrox Diver
TDI Mixed Gas

TDI Helitrox Diver

Take the next step beyond traditional decompression diving with helium-based breathing gas training designed to reduce narcosis and improve diver clarity at depth. The TDI Helitrox Diver course introduces mixed gas planning, helium blending concepts, advanced decompression procedures and extended technical dive profiles to a maximum depth of 45 metres.
Prerequisites
Advanced Nitrox & Decompression Procedures certification or equivalent training with recent technical diving experience recommended.
TDI Trimix Diver 60m
TDI Trimix

TDI Trimix Diver 60m

Expand your technical diving capabilities through advanced trimix training designed for deeper dives and increased decompression exposure. The TDI Trimix Diver course develops advanced gas planning, helium-based decompression strategies, team procedures and equipment management for technical dives to a maximum depth of 60 metres.
Prerequisites
Advanced Nitrox & Decompression Procedures certification or equivalent technical diving training with recent decompression diving experience recommended.

Cave Diving Courses

Explore overhead environment training through CDAA cave diving pathways with the option for TDI cross certification.
CDAA Basic Cave Diver
CDAA Cave

CDAA Basic Cave Diver

Begin your journey into the world of cavern, sinkhole and cave diving through structured CDAA overhead environment training. The CDAA Basic Cave Diver course introduces divers to equipment configuration, buoyancy control, trim, situational awareness, guideline procedures, reels, cookies, dive planning and gas management while developing the foundational skills required for safe cave exploration and limited penetration environments.
Prerequisites
Advanced Open Water certification with strong buoyancy control, situational awareness and recent diving experience recommended.
CDAA Cave Diver
CDAA Cave

CDAA Cave Diver

Advance beyond limited penetration environments through structured cave diving training focused on navigation, guideline procedures, gas management, team protocols and emergency problem solving in more complex overhead environments. The CDAA Cave Diver course develops the technical skills, discipline and situational awareness required for safe cave exploration in darker zones, restricted passages and extended penetration cave systems.
Prerequisites
CDAA Basic Cave Diver certification with recent overhead environment diving experience and a solid level of diving maturity, buoyancy control and situational awareness required.
Halcyon Rebreather Training
Closed Circuit Rebreather Training

Halcyon Rebreather Training

Explore advanced closed circuit rebreather diving through structured Halcyon CCR training designed for divers seeking longer dives, reduced gas consumption and expanded technical diving capability.
Extended dive duration and increased gas efficiency.
Reduced bubbles and quieter underwater operation.
Advanced decompression and expedition diving capability.
Structured Halcyon rebreather systems training pathways.
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Training Infrastructure

Why train with Extreme Watersport

Technical diving certifications can be issued quickly. Real capability takes longer to build. Our Melbourne technical diving programs are structured around diver development, discipline and practical readiness, not minimum standards alone.
01

Beyond Minimum Standards

Our courses are built around real diver capability, not rushed certification. Training time, performance expectations and progression are guided by readiness, not shortcuts.
02

Real Technical Diving Environment

Train in real-world local conditions with structured development focused on discipline, situational awareness, gas management and practical diving control.
03

Gas, Equipment & Service Support

Access in-house nitrox, trimix and oxygen blending, technical equipment servicing and ongoing support before, during and after your course.
04

Long-Term Diver Development

Progress from foundational technical skills through decompression, trimix, cave and CCR training within a connected pathway supported by continued diving opportunities.
Technical Diving FAQ

Technical diving questions, answered clearly.

Planning your technical diving progression in Melbourne or the Mornington Peninsula? These FAQs cover TDI technical diving courses, decompression procedures, trimix training, CCR pathways, sidemount training and CDAA cave diving for divers looking to expand their technical diving capability in Australia.

Do I need technical diving experience before starting Intro to Tech?

No. Intro to Tech is designed as a foundation-level technical diving course in Melbourne for divers who want to improve buoyancy, trim, propulsion, situational awareness, equipment configuration and team procedures before progressing into decompression diving, sidemount, cave or trimix training.

Can I start technical diving with TDI Sidemount?

Yes, TDI Sidemount can be a strong entry point for divers in Melbourne looking for a more flexible technical diving equipment configuration. It is especially useful for divers interested in cave diving, technical diver development, gas management and improved underwater control.

What is Advanced Nitrox & Decompression Procedures?

Advanced Nitrox & Decompression Procedures is a core technical diving pathway that introduces staged decompression diving, enriched air nitrox, decompression gases, advanced gas planning, stage cylinder handling and team-based procedures for extended dive profiles.

What is the difference between Helitrox and Trimix Diver 60m?

Helitrox introduces helium-based breathing gases for reduced narcosis and improved clarity at moderate technical depths. Trimix Diver 60m builds further into deeper mixed gas diving, more advanced decompression planning, helium-based gas strategies and technical dive profiles to a maximum depth of 60 metres.

Do you offer CDAA cave diving courses?

Yes. We offer CDAA Basic Cave Diver and CDAA Cave Diver training pathways. These courses focus on overhead environment procedures including guideline use, reels, cookies, buoyancy, trim, communication, navigation, gas management, lost line procedures and team protocols.

Can CDAA cave courses be paired with TDI certification?

Selected CDAA cave diving courses may be paired with relevant TDI certification options for an additional uplift covering course materials and student registrations. This is useful for divers who want both Australian cave diving recognition and an international technical diving pathway.

Do you offer CCR or rebreather training?

Yes. We offer Halcyon rebreather training in Melbourne for divers interested in closed circuit rebreather diving, longer dive duration, reduced gas consumption, quieter underwater operation and advanced technical diving capability.

Do I need my own technical diving equipment?

Technical diving equipment requirements depend on the course and the diver’s pathway. For advanced technical diving, decompression, trimix, cave and CCR training, having suitable personal equipment is strongly recommended. We can assist with equipment configuration, servicing and setup advice before training begins.

Are nitrox, trimix and oxygen fills available?

Yes. Extreme Watersport supports technical divers in Melbourne with in-house nitrox, trimix and oxygen blending, along with cylinder testing, oxygen cleaning and technical diving equipment servicing for ongoing diver support beyond certification.

Are your technical diving courses minimum standard courses?

Our technical diving courses are structured around long-term diver development, discipline and practical readiness rather than minimum standards alone. Certification is not treated as a shortcut. Training progression is based on capability, control, judgement and readiness for the next environment.

Technical Diving Pathways

Ready to start your technical diving pathway?

Whether you are starting with Intro to Tech, progressing into decompression and trimix, or exploring cave and CCR training, contact us to discuss the right next step for your experience, goals and equipment configuration.
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