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National Diving & Activity Centre
Tidenham
Chepstow
Gloucestershire
NP16 7LH
 
Tel: 01291 630 046
 
email

Please be advised that the NDAC is closed Monday to Wednesday, so emails and phone calls may not be responded to during this time. Depending on when you make your enquiry it may take a few days before we can get back in touch with you.

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Tech Diving

TDI Intro to Tech
Course Codes NDAC-TDI-ITT

Technical Diving International - TDIThe past few years has seen a huge growth in the popularity of technical diving.... Have you ever wondered why these people jump into the water with so much kit? What do they need it for? Where are they going? How do they manage it?

The objective of this course is to familiarise students with technical equipment configurations, to enhance open water diving skills (such as buoyancy, trim, and situational awareness), and to introduce students to advanced gas planning techniques within a no-decompression context.

Qualification Depth
No depth rating earned – experience programme only.

Completion with participation.

 

Duration Cost Previous Experience/ Notes Dates

2 days (minimum 3 dives)

£200

Includes: Manual, certification, equipment hire.

Excludes: Site Entrance, Air fills.

Minimum age: 18

Logged dives: 25

Minimum qualification: PADI Open Water Diver (or equivalent)

 

Below are our scheduled dates for this course. Experience has shown that Technical Diving Courses often need to be tailored to the individual, so if the dates are not suitable please get in touch as we are willing to discuss alternatives.

06-07 Sep 2014

04-05 Oct 2014

01-02 Nov 2014

13-14 Dec 2014

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TDI Rebreather Discovery (Try-Dive)
Course Codes NDAC-TDI-RD

Technical Diving International - TDIThe TDI Rebreather Discovery course is designed to give prospective students an introduction to diving a TDI approved rebreather in a controlled environment under the direct supervision of an active TDI Rebreather Instructor.

It is an opportunity to understand this equipment in more detail, learn about the benefits (and potential drawbacks) and discover the wonder of the truly silent underwater world!!

This experience is based in the pool. An optional open water dive is available on request.

All training is done using the AP Rebreathers:
• Inspiration Classic
• Inspiration Vision
• Evolution
• Evolution Plus.

Qualification Depth
No depth rating earned – experience programme only.

Completion with participation.

 

Duration Cost Previous Experience/ Notes Dates

Confined Water Only: 3 hours on either Saturday afternoon (12pm) or Sunday morning. (9:30am)

Optional Open Water Dives: As above plus one morning to be arranged to suit.

£55 (confined water only)

£130 (including open water dive)

Includes: oxygen/absorbent fills, equipment hire, certification

Excludes: Site entrance fees, hire of any equipment (except rebreather) for open water option.

Minimum age: 18

Logged dives: 10 (if pool only experience), 25 (if open water option chosen)

Minimum qualification: PADI Enriched Air Speciality, TDI Understanding Nitrox (or equivalent)

 

Below are our scheduled dates for this course. Experience has shown that Technical Diving Courses often need to be tailored to the individual, so if the dates are not suitable please get in touch as we are willing to discuss alternatives.

23 Aug 2014

13 Sep 2014

04 Oct 2014

25 Oct 2014

15 Nov 2104

06 Dec 2014

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TDI Advanced Nitrox & Decompression Procedures
Course Codes NDAC-TDI-ANDP

Technical Diving International - TDIMany people view this course to be heading down the technical diving route. While this is largely true, it is not always the case. It may just be that you are looking to expand your knowledge and skills or wish to maximise your time on the dive. Others may have found themselves doing a bit of deco (!) on their computers before, and have realised they should have a better understanding of the theory behind doing this. The reason are many and varied...!!!

This course examines the theory, methods and procedures of planned stage decompression diving. The objective of this course is to train divers how to plan and conduct a standard staged decompression dive not exceeding a maximum depth of 45m.

Please note: Advanced Nitrox & Decompression Procedures can both be conducted as standalone courses in their own right. Please contact us if this is something you are interested in.

Qualification Depth
45 metres maximum.
Utilise up to 100% pure oxygen.

Course is performance based.

 

Duration Cost Previous Experience/ Notes Dates

3 days
(minimum 6 dives)

£450

Includes: Manual, certification, use of O2 analyser

Excludes: Site entrance fees, gas fills, equipment hire.

Minimum age: 18

Logged dives: 25

Minimum qualification: PADI Advanced Open Water (or equivalent)

 

Below are our scheduled dates for this course. Experience has shown that Technical Diving Courses often need to be tailored to the individual, so if the dates are not suitable please get in touch as we are willing to discuss alternatives.

15-17 Aug 2014

12-14 Sep 2014

10-12 Oct 2014

07-09 Nov 2014

19-21 Dec 2014

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TDI Advanced Nitrox & Helitrox
Course Codes NDAC-TDI-ANH

Technical Diving International - TDIThis course examines the theory, methods and procedures for planned stage decompression diving utilizing Helium in the breathing mixture. The objective of this course is to train divers how to plan and conduct a standard staged decompression dive not exceeding a maximum depth of 45 metres. The most common equipment requirements, gear set-up, and decompression techniques are presented.

Students will be permitted to utilize Enriched Air Nitrox and Helium mixes with no greater than 20% He content, and up to 100% oxygen for decompression diving.

Breathing gas mixtures containing more than 20% Helium or less than 21% oxygen are not permitted.

Please note: Advanced Nitrox and Helitrox can both be conducted as stand alone courses in their own right. If this is what you are interested in, please get in touch with us for further details.

Qualification Depth
45 metres maximum.
Backgas cannot contain more than 20% helium, or less than 21% oxygen.
Utilise up to 100% pure oxygen for decompression.

Course is performance based.

 

Duration Cost Previous Experience/ Notes Dates

3 days
(minimum 6 dives)

£450

Includes: Manual, certification, use of helium/O2 analyser

Excludes: Site entrance fees, gas fills, equipment hire

Minimum age: 18

Logged dives: 50

Minimum qualification: SDI Advanced Diver (or equivalent) with Deep Speciality, or TDI Intro to Tech . Must be certified as TDI Advanced Nitrox Diver (students can be enrolled on both courses at the same time)

While not a requirement, we strongly recommend that the course is conducted using a twinset.

If you have never used one before, this course can be taken in conjunction with a Twinset Familiarisation Course. Please get in touch with us if you are interested in this course.

Twinsets/regulators are available for hire for the duration of the course.

 

Below are our scheduled dates for this course. Experience has shown that Technical Diving Courses often need to be tailored to the individual, so if the dates are not suitable please get in touch as we are willing to discuss alternatives.

15-17 Aug 2014

12-14 Sep 2014

10-12 Oct 2014

07-09 Nov 2014

19-21 Dec 2014

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TDI Extended Range
Course Codes NDAC-TDI-ER

Technical Diving International - TDIAs with many of the courses in the TDI training programme, this Extended Range programme serves to add more knowledge and skills to your diving development and leaves you qualified to take on more challenging and adventurous dives.

The course will reinforce much of what has been looked at on previous TDI programmes, but will go into greater depth, as well as introducing some new concepts/ideas.

This course will provide the training and experience required to competently utilize air for dives up to 55 metres that require staged decompression, utilizing nitrox mixtures or oxygen during decompression.

The object of the programme is to train divers in the proper techniques, equipment requirements, hazards of deep air diving to this depth.

Qualification Depth
55 metres maximum, using air as backgas.

Course is performance based.

 

Duration Cost Previous Experience/ Notes Dates

3 days

(minimum 4 dives)

£450

Includes: Manual, certification, use of O2 analyser

Excludes: Site entrance fees, gas fills, equipment hire

Minimum age: 18

Logged dives: 100 (25 must be deeper than 30 metres)

Minimum qualification: TDI Advanced Nitrox & Deco Procedures (or equivalent)

If you have never used one before, this course can be taken in conjunction with a Twinset Familiarisation Course. Please get in touch with us if you are interested in this course.

Twinsets/regulators are available for hire for the duration of the course.

 

Below are our scheduled dates for this course. Experience has shown that Technical Diving Courses often need to be tailored to the individual, so if the dates are not suitable please get in touch as we are willing to discuss alternatives.

19-21 Sep 2014

14-16 Nov 2014

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TDI Trimix
Course Codes NDAC-TDI-T

Technical Diving International - TDIAs your motivation to explore progresses you will find that you may want to go deeper to dive that historical wreck or that cave system that you have read so much about. Or you may just want to continue your progression and learn new skills and techniques.

One of the major limiting factors of going deeper is narcosis; TDIs Trimix Diver course shows you how to minimize the effects of narcosis by using helium in place of a percentage of the nitrogen in your breathing gas.

This four day course provides the training required to competently and safely utilize breathing gases containing helium for dives that require staged decompression, utilizing nitrox and/or oxygen mixtures during decompression to a maximum depth of 60m.

Qualification Depth
60 metres maximum, using trimix as backgas (helium content not to exceed 18%)

Course is performance based.

 

Duration Cost Previous Experience/ Notes Dates

4 days
(minimum 4 dives)

£480

Includes: Manual, certification, use of Helium/O2 analyser

Excludes: Site entrance fees, gas fills, equipment hire, Instructors gas fills

Minimum age: 18

Logged dives: 100

Minimum qualification: TDI Advanced Nitrox & Deco Procedures (or equivalent)

The course must be conducted using a twinset. Twinsets/regulators are available for hire for the duration of the course.

 

Below are our scheduled dates for this course. Experience has shown that Technical Diving Courses often need to be tailored to the individual, so if the dates are not suitable please get in touch as we are willing to discuss alternatives.

18-21 Sep 2014

13-16 Nov 2014

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TDI Advanced Trimix
Course Codes NDAC-TDI-AT

Technical Diving International - TDIThe TDI Advanced Trimix course provides the training required to competently and safely utilize breathing gases containing helium for dives that require staged decompression, utilizing nitrox or oxygen (O2) mixtures during decompression to a maximum depth of 100 metres.

The objective of this course is to train divers in the benefits, hazards and proper procedures of utilizing custom trimix mixtures as breathing gases.

Qualification Depth
100 metres maximum, using trimix as backgas

Course is performance based.

 

Duration Cost Previous Experience/ Notes Dates

4 days
(minimum 4 dives)

£560

Includes: Manual, certification, use of Helium/O2 analyser

Excludes: Site entrance fees, gas fills, equipment hire, Instructors gas fills

Minimum age: 18

Logged dives: 100 (25 deeper than 30 metres)

Minimum qualification: TDI Extended Range or Trimix Diver

Show proof of experience using twinsets.

The course must be conducted using a twinset. Twinsets/regulators are available for hire for the duration of the course.

 

Below are our scheduled dates for this course. Experience has shown that Technical Diving Courses often need to be tailored to the individual, so if the dates are not suitable please get in touch as we are willing to discuss alternatives.

18-21 Sep 2014

13-16 Nov 2104

Booking Information>       Back to Top>

TDI Air Diluent Rebreather Diver
Course Codes NDAC-TDI-ADRD

Technical Diving International - TDINo doubt if you are considering this course, you have already done some research on rebreathers, and maybe even had a go! The reasons for taking this step are many and varied, but whatever it is that has motivated you to do so, this is the entry level rebreather course that will take you safely into the world of silent diving!

This is the entry level certification course for divers wishing to utilize a Closed Circuit Rebreather (CCR) for air diving. The objective of the course is to train divers in the benefits, hazards and proper procedures for diving a CCR and to develop basic CCR diving skills to a maximum depth of 30 metres , using air as a diluent. No decompression diving is allowed on this course.

Currently, all training is done using the AP Closed Circuit Rebreathers:

• Inspiration Classic
• Inspiration Vision
• Evolution
• Evolution Plus.

Units are available to hire for the duration of the course, or we are an authorised dealer for AP Diving and can advise you on and the arrange the purchase of a new unit.

We do also have some second hand units available at times. Please have a chat with your instructor about all these options.

Qualification Depth
30 metres – Air as diluent

Performance based course

 

Duration Cost Previous Experience/ Notes Dates

5 days

£600

Includes: course manual, certification

Excludes: oxygen/absorbent fills, equipment hire, site entrance fees

Minimum age: 18

Logged dives: 20

Minimum qualification: TDI Understanding Nitrox (or equivalent)

 

Below are our scheduled dates for this course. Experience has shown that Technical Diving Courses often need to be tailored to the individual, so if the dates are not suitable please get in touch as we are willing to discuss alternatives.

27-31 Aug 2014

24-28 Sep 2014

15-19 Oct 2014

26-30 Nov 2014

Booking Information>       Back to Top>

TDI Air Diluent Deco Procedures Rebreather Diver
Course Codes NDAC-TDI-ADDPRD

Technical Diving International - TDIThis is the certification course for divers wishing to utilize a Closed Circuit Rebreather (CCR) for air diving. The objective of the course is to train divers in the benefits, hazards and proper procedures for diving a CCR and to develop basic CCR diving skills to a maximum depth of 45 metres / 100 feet, using air as a diluent for formal decompression diving.

Currently, all training is done using the AP Closed Circuit Rebreathers:

• Inspiration Classic
• Inspiration Vision
• Evolution
• Evolution Plus.

Units are available to hire for the duration of the course, or we are an authorised dealer for AP Diving and can advise you on and the arrange the purchase of a new unit.

We do also have some second hand units available at times. Please have a chat with your instructor about all these options.

Qualification Depth
30 metres – Air as diluent

Performance based course

 

Duration Cost Previous Experience/ Notes Dates

5 days

£600

Includes: course manual, certification

Excludes: oxygen/absorbent fills, equipment hire, site entrance fees

Minimum age: 18

Logged dives: 50

Minimum qualification: TDI Advanced Nitrox & Decompression Procedures (or equivalent)

OR

Minimum age: 18

Logged dives: 50

Minimum qualification: TDI Air Diluent Rebreather Diver (or equivalent)

30 hours & 6 months Closed Circuit Rebreather (CCR) diving experience

 

Below are our scheduled dates for this course. Experience has shown that Technical Diving Courses often need to be tailored to the individual, so if the dates are not suitable please get in touch as we are willing to discuss alternatives.

27-31 Aug 2014

24-28 Sep 2014

15-19 Oct 2014

26-30 Nov 2014

Booking Information>       Back to Top>

 

DSAT Enriched Air Gas Blender / Trimix Blender
Course Codes NDAC-DSAT-EAGB or NDAC-DSAT-TGB

DSAT Gas BlenderWhy DSAT Gas Blender?
More people are diving with enriched air and this means the demand for enriched air fills is also increasing. However, there needs to be someone qualified to administer these fills to meet this demand. This is where the DSAT Gas Blender course comes in. It can result in one of two certifications: DSAT Gas Blender or DSAT Trimix Blender.

What do I need to start?
PADI Enriched Air Diver certification (or qualifying certification from another organization)

  • Minimum age: 18 years old

What will I do?
The DSAT Gas Blender course will train you as a qualified gas blender, allowing you to provide gas mixes to appropriately certified consumers. You'll learn the physical properties of oxygen, its associated hazards, handling requirements and what cleaning equipment is necessary. Finally, you will learn the five methods of obtaining the desired enriched air nitrox mix and the various methods used to obtain proper helium mixes.

What will I need?

  • DSAT Gas Blender Manual
  • Gas Mix Calculator

 

Duration Cost Previous Experience/ Notes Dates
1 Day £95 Enriched Air or £95 for Trimix

PADI Enriched Air Diver certification (or qualifying certification from another organization) or Enriched Air Blender for Trimix.

Minimum age: 18 years old

 

2014 Course Schedule to follow shortly.

Custom courses are available on demand throughout the year to suit your time schedule. Contact us for further details and to arrange a date.

 

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