NDAC is now open
We are excited to confirm that we are open for Scuba Diving on weekends.
The main phone line is currently not manned and has no answerphone system in place. Emails are responded to daily so please use our contact form or email with any urgent matters.
We thank you for all your support.
Darren & Kaye
Activities & Events
Please be advised that the NDAC office is closed Monday to Thursday, 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.
Please be advised that the NDAC office is closed Monday to Thursday, the main phone line is currently not manned and has no answerphone system in place. Emails are responded to daily so please use our contact form or email with any urgent matters.
NDAC Emergency Procedure Information
Nearest Telephone and Communications Locations at site
National Diving & Activity Centre Main Facilities Building:
The View Café Bar:
The water & floating pontoon areas are covered by all UK mobile phone networks. However, like most rural locations, reception may vary in specific areas. It is advised you check your mobile network if using this as a line of communication for your dive project/plan.
The site is a rural location and the water area is 34m below the car park. The lake is surrounded by limestone walls over 200ft in height.
NDAC staff carry hand-held radios and link to the main building and main line phone at all times.
The Emergency Panic push button alarm system on the floating pontoons is linked into the main site's intruder alarm system if activated.
To activate the alarm push the button with your hand. A radio link will activate the alarm at the centre so centre staff know there is an incident. There is also a hand held radio in the blue shed if required to speak to NDAC staff.
CCTV is in operation throughout the site 24 hours a day and monitored for the purposes of crime prevention and public safety. This scheme is controlled by the National Diving & Activity Centre. For further information please contact us.
Dial 999 or 911
HM Coastguard Channel 16 or 999
Maritime Coastguard Agency (Beachley) 01291 626 814
If the incident is diving related, the emergency services will respond and NDAC will advise DDRC who in turn will give clear direction on medical advice in cooperation with first aid staff and attending emergency services.
Any blue light/emergency service asset dispatched to the NDAC will be coordinated by NDAC staff during public opening by day and by night.
NDAC Site Description
2 Miles East of Chepstow on the A48. NDAC Location Map and Directions>
Map Reference Sheet 162 Grid 552955. NDAC OS Map>
GPS 55238 / 95854
Quarry runs North – South / East – West
Car Park at southern end of site
Hazards Telegraph pole 30 meters south of landing zone
Nearest Recompression Chambers
The nearest Chambers to the National Diving & Activity Centre are as follows:
Specialist Hyperbaric Advice
Tel 01752 209 999
The Diving Diseases Research Centre (DDRC), is a charity which aims to promote and take part in the medical treatment, training and research associated with the use of hyperbaric oxygen in the treatment of diving diseases and other medical problems.
Capital Hyperbarics, London
Tel 07623 937 666
Tel 07770 423 637
Hyperbaric Chamber and Recompression Services in Poole and Reading. The Diver Clinic provide a recompression service for divers with decompression illness (the bends). If you wish to contact us concerning symptoms, our hyperbaric chamber or the medical treatment of diving injuries, please call our emergency number shown above.
Tel 07940 353 816
The London Diving Chamber, a Hyperbaric decompression chamber offering NHS funded recompression to divers with Decompression Sickness (DCS) together with other Hyperbaric Oxygen Therapy (HBOT) treatments.
London Diving Chamber specialises in Diving Medicine and provides a 24 hour clinic with everything a diver could need from a medical facility.
The aims and objectives of the BHA are as follows:
To self regulate member chambers, so that hyperbaric oxygen therapy is delivered in an appropriate and safe manner to patients, and that member chambers work within accepted clinical and technical standards and legislation.
To encourage the exchange of information on treatment problems, a common database, the best use of resources available, and methods of closer unification.
To encourage a method by which peer group review is acceptable and current medical advances are disseminated.
To discuss methods of achieving long term financial support.
DAN: Divers Alert Network
DAN helps divers in need, 24/7, anywhere in the world, with medical emergency assistance, and promotes diving safety through Research, Education, Products and Services.
Emergency 0870 871 9999
The National Diving & Activity Centre (NDAC Ltd) is situated in Tidenham, on the edge of Gloucestershire and is only 1.5 miles from the border of Chepstow, Wales.
We sit between 2 major hospitals within a 20-mile radius of the site: Royal Gwent (19.4 Miles) & Southmead (16.7 miles). There is also a local A&E at Lydney Hospital within 8 mile of the site.
The choice of hospital and the route taken by blue light services could be affected by a number of variables:
• Volume of traffic in city areas, local road networks and M4/M48/M5 motorways.
The emergency department selected may not always be the one closest to the NDAC. However, blue light services will liaise with the NDAC and advise where any casualty will be taken.
Lydney & District Hospital (Minor Injuries)
Lydney & District Hospital is situated on the northern edge of Lydney town center on the A48 road from NDAC Ltd
7.6 miles by road with a travel time of 13 minutes by road
The hospital is open for Minor Injuries only from 0800 - 1800hrs
Lydney & District Hospital
01594 598 244
Royal Gwent Hospital (Major / Minor Injuries)
Royal Gwent District Hospital is situated on the western edge of Newport town centre on the A48 main road to Cardiff.
19.4 miles by road with a travel time of 27 minutes by road
Open 24 hours (Major/Minor Injuries)
Cardiff Road, Town Centre
Southmead Hospital (Emergency Department (ED) & Minor Injuries Unit (MIU))
Southmead Hospital Bristol is situated in the northern suburbs of Bristol and has an Emergency Department (ED) and Minor Injuries Unit (MIU)
16.2 miles by road with a travel time of 26 minute by road via M48 Severn bridge.
Open 24hours (Major / Minor Injuries)
Oxygen Therapy Units
You are to ensure you provide your own Oxygen Therapy Units for any diving related works / training you undertake at NDAC.
NDAC hold such units for emergency use only in the following areas:
• Inside main building at NDAC x 2
First Aid /Kits
First Aid Kits can be found:
• Inside the NDAC (main building)
• Inside the Floating Pontoon Shed (Waterside)
• Inside all vehicles
We have up to 3 defibrillators on site:
1. A community defibrillator is located by NDAC main gate. Access to this is via 999.
Emergency rescue & first aid equipment such as rescue sledges, spine boards, stretcher and blankets are available in the Floating Pontoon Blue Shed.
We also have a Safety Support Boat (waterside)
NDAC Environmental Impact Features
Entry & Exit Points
Environmental Impact Study
Useful Site Numbers
D Bryce MBE