Twinset Programs

& Decompression Diver Training

Twinset  & DECO Training

Diving a Twinset opens the door for some more serious diving, increased depth and duration are now at your fingertips. For those diving in a backplate and wing the transition is fairly straight forwards, for those who have previously dived a regular jacket style BCD the difference perhaps a little bigger. We've highlighted the different options below, if you are not sure just contact us and tell us what you with to achieve.

TDI Programs

The Technical Diving International (TDI) is a globally renowned scuba diving training agency that specializes in providing comprehensive instruction and certification for individuals seeking to explore the thrilling and challenging world of technical diving. Founded with a commitment to advancing the boundaries of recreational scuba diving, TDI offers a wide range of courses designed to equip divers with the knowledge and skills required for diving beyond the traditional limits. Whether it's deep diving, wreck exploration, cave diving, or utilizing mixed gases, TDI is a leading authority in training divers to safely and confidently explore the underwater realm in more demanding and exhilarating conditions. With a strong emphasis on safety, TDI has earned a reputation for producing highly skilled technical divers who are prepared to tackle the underwater world's most fascinating and challenging environments.

Intro To Tech

Your booking is secured once your deposit is paid, this locks you into the calendar and allocates those dates to you.

The TDI Intro to Tech Course is the ultimate starting point for divers looking to expand their skills and step into the world of technical diving. This foundational course introduces advanced techniques, equipment configurations, and mindset shifts needed for more demanding dive environments. You’ll refine your buoyancy, trim, and propulsion techniques, and learn how to manage redundant systems and handle potential emergencies with confidence.Whether you aspire to explore deeper depths, overhead environments, or simply want to dive with a more streamlined and efficient setup, Intro to Tech sets the stage. It's not just about learning new skills—it's about transforming your diving approach and preparing you for the exciting challenges ahead. Take the first step toward your technical diving journey and unlock new underwater possibilities!

Approximate Duration: 2 Days
Pre-requisites: Drysuit Diver
Equipment: Twinset, wing, regs supplied
Cost estimation: £450

Advanced Nitrox Diver

The TDI Advanced Nitrox Course is your gateway to diving beyond the limits of recreational no-stop diving, unlocking the potential of enriched air mixtures for safer and more efficient dives. Designed for those ready to elevate their skills, this course teaches the use of nitrox mixes ranging from 22% to 100% oxygen, preparing you for extended bottom times, precise gas planning, and more advanced diving environments.Whether you're looking to enhance your safety on dives within recreational depths or lay the groundwork for decompression and technical diving, Advanced Nitrox equips you with the knowledge and confidence to expand your horizons. Take control of your diving future with the skills to push your limits responsibly and effectively!4o

Approximate Duration: 2 Days
Pre-requisites: AOW Diver & Drysuit Diver
Equipment: Student Supplies
Price Starting From: £500

Decompression Procedures

The TDI Decompression Procedures Course is the key to unlocking longer, deeper dives by teaching you how to safely plan and execute staged decompression dives. This course goes beyond recreational limits, focusing on advanced dive planning, precise gas management, and decompression strategies. You’ll gain the skills to conduct dives to a maximum depth of 150 feet (45 meters) while mastering ascent techniques and contingency planning for real-world scenarios.Whether you're advancing toward technical exploration or seeking to expand your capabilities for deeper, more challenging dives, Decompression Procedures provides the essential tools for safe and confident decompression diving. Take your diving to new depths with this transformative course!

Approximate Duration: 2-3 Days
Pre-requisites: Deep 40 & Drysuit Diver
Equipment: Student Supplies
Price Starting From: £500

Advanced Nitrox & Deco Procedures COMBO

The TDI Advanced Nitrox & Accelerated Decompression Procedures Combination Course is the ultimate program for divers ready to push their boundaries and enter the world of technical diving. This comprehensive training integrates the use of nitrox blends up to 100% oxygen with advanced decompression techniques to maximize dive efficiency and safety.You’ll learn precise gas planning, multi-cylinder handling, and accelerated decompression strategies, enabling you to conduct staged decompression dives up to a depth of 150 feet (45 meters). By combining these two essential courses, you’ll gain a seamless understanding of how to extend bottom times and manage decompression obligations with confidence and control. Perfect for divers seeking the skills to explore deeper and longer while maintaining a strong focus on safety, this combination program is your launchpad into the exciting world of technical diving.

Approximate Duration: 4 Days
Pre-requisites: Deep 40 & Drysuit Diver
Equipment: Student Supplies
Price Starting From: £1000

Helitrox Diver

The TDI Helitrox Diver Course is your introduction to the benefits of helium-enriched gas mixtures for safer and clearer thinking during dives beyond recreational limits. Designed for divers seeking to extend their range while minimizing narcosis, this course teaches the use of helitrox blends (helium and nitrox) for staged decompression dives to a maximum depth of 150 feet (45 meters).You’ll master advanced gas planning, multi-cylinder handling, and decompression strategies, while learning how helium improves dive performance at depth. Whether you're exploring deeper recreational limits or preparing for full trimix diving, the Helitrox Diver Course equips you with the tools to dive deeper with confidence, safety, and precision.

Approximate Duration: 2-3 Days
Pre-requisites: Deco40 & Drysuit Diver
Equipment: Student Supplies
Price Starting From: £500
Trimix 60 Diver

The TDI Trimix 60 Course is designed for divers ready to explore deeper depths with the safety and precision of trimix gas blends. This course teaches the use of trimix, a combination of oxygen, nitrogen, and helium, to mitigate narcosis and reduce gas density at depths up to 60 meters (200 feet). You’ll gain essential skills in advanced dive planning, gas management, and decompression strategies to safely navigate the challenges of deep diving. With a focus on handling multiple cylinders, managing gas switches, and executing precise ascent procedures, the Trimix 60 Course prepares you for the complexities of deep technical diving. If you're ready to extend your diving limits while maintaining the highest standards of safety, this course will give you the confidence to explore the deep blue.

Approximate Duration: 3 Days
Pre-requisites: Deco 50 & Drysuit Diver
Equipment: Student Supplies
Price Starting From: £750

Trimix 75 Diver

The TDI Trimix 75m Upgrade Course is designed for experienced trimix divers looking to extend their depth capabilities to 75 meters (246 feet). Building on the skills learned in the Trimix 60 course, this upgrade focuses on advanced dive planning, deeper decompression strategies, and enhanced gas management to ensure safety and efficiency at greater depths.You’ll learn how to effectively manage multiple gas mixes, perform complex gas switches, and execute precise decompression procedures in challenging environments. This course is perfect for divers seeking to explore deeper wrecks, caves, or other technical dive sites while maintaining a high level of safety and control. The Trimix 75m Upgrade equips you with the skills needed to confidently take on the most demanding deep dives.

Approximate Duration: 2 Days Upgrade
Pre-requisites: Deco 50 & Drysuit Diver
Equipment: Student Supplies
Price Starting From: £500

Advanced Trimix 100 Diver

The TDI Advanced Trimix Course is the next step for divers seeking to push the limits of deep technical diving. Designed for dives beyond 75 meters (246 feet), this course teaches the use of advanced trimix gas blends, combining oxygen, nitrogen, and helium, to reduce narcosis and gas density for dives to extreme depths.Divers will refine their skills in complex dive planning, multiple gas management, advanced decompression procedures, and emergency protocols. The course prepares divers to handle the challenges of extreme depths, ensuring safety while exploring deep wrecks, caves, or other technical dive environments. The Advanced Trimix Course is essential for those looking to confidently dive in the most demanding conditions, with the expertise to manage gas mixes, depth, and time safely.

Approximate Duration: 4 Days
Pre-requisites: Deco 50 & Drysuit Diver
Equipment: Student Supplies
Price Starting From: £1100

RAID Programs

RAID is an exciting young agency with a very forward thinking approach to dive training and modern education, their programs are in-depth and fairly demanding in comparison as well as recognised worldwide.

Twinset Foundations

Your booking is secured once your deposit is paid, this locks you into the calendar and allocates those dates to you.

The Twinset Foundation program is a combination course, it introduces you to how to set up, dive, and control your twinset as well as giving you an introduction to technical diving, procedures and team roles. We will go through set-up, valve flow, valve manipulation, long hose set-up, long hose use, and basic positioning in the water.

This is a 2 day program with a certification at the end, this course was written by Oli van Overbeek, and thus you'll be training with the course author!

Approximate Duration: 2 Days
Pre-requisites: Drysuit Diver
Equipment: Twinset, wing, regs supplied
Price Starting From: £450

Twinset Perormance Diver

The RAID performance diver is specifically aimed at those who have never done a RAID program, it's a general overhaul on equipment configuration, buoyancy & trim, propulsion, basic gas donation, etc.

This program can be done while wearing a twinset, and you will learn how to dive the twinset as well as manipulate all valves. This officially qualifies you as a twinset diver.

Approximate Duration: 3 Days
Pre-requisites: AOW Diver & Drysuit Diver
Equipment: Student Supplies
Price Starting From: £650

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