NDAC TRF - Training & Research Facilities

Our Chepstow Site (The National Diving & Activity Centre (NDAC)) is closed.

The NDAC TRF is situated in Ammanford in the heart of South Wales, our facility boasts a breathtaking 124-meter-deep lake. This unique body of water, with a volume of 20 million cubic meters, spans an impressive 1.2 km in length and 0.5 km in width, offering a controlled, non-tidal environment for year-round diving, training and research activities.

We are not currently open for recreational diving, but welcome enquiries from training organisations.

Location of the National Diving & Activity Centre

The National Diving & Activity Centre is located 1.2 miles east of Chepstow on the A48.

Chepstow OS Landranger Map 172

Perfect for outdoor enthusiasts enjoying activities in the area of the National Diving & Activity Centre.

Some of the places covered on map sheet 172 include Chepstow, Thornbury, Kingswood, Clifton, Bristol, Bath, Chew Magna, Chipping Sodbury and Portishead. A section of the End of Offa's Dyke Path and the Cotswold Way are marked on map 172. The Mendip Hills are designated an Area of Natural Beauty.

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• Download a printable PDF of the map and directions directions.pdf 112kb

Directions to the National Diving & Activity Centre

From the North

Take the M5 South to Junction 15 - Turn west on the M4 towards South Wales - Turn onto the M48 towards Chepstow and Services - Cross the Severn and Wye Bridges and turn off at Junction 2 - Take the second exit A466 towards Chepstow and Tintern - Turn right onto the A48 at the next roundabout and continue into Chepstow. Continue through Chepstow on the A48 towards Gloucester, the National Diving & Activity Centre is 1.2 miles outside Chepstow on the left hand side.

From the South

Take the M5 North to Junction 15 - Turn west on the M4 towards South Wales - Turn onto the M48 towards Chepstow and Services - Cross the Severn and Wye Bridges and turn off at Junction 2 - Take the second exit A466 towards Chepstow and Tintern - Turn right onto the A48 at the next roundabout and continue into Chepstow.Continue through Chepstow on the A48 towards Gloucester, the National Diving and Activity Centre is 1.2 miles outside Chepstow on the left hand side.

From the East

Take the M4 West and continue past Junction 20 - Turn onto the M48 towards Chepstow and Services - Cross the Severn and Wye Bridges and turn off at Junction 2 - Take the second exit A466 towards Chepstow and Tintern - Turn right onto the A48 at the next roundabout and continue into Chepstow.Continue through Chepstow on the A48 towards Gloucester, the National Diving & Activity Centre is 1.2 miles outside Chepstow on the left hand side.

From the West

Take the M4 East and continue past Junction 23 - Take the M48 towards Chepstow - Exit at Junction 2 - Take the first exit A466 towards Chepstow and Tintern - Turn right onto the A48 at the next roundabout and continue into Chepstow. Continue through Chepstow on the A48 towards Gloucester, the National Diving & Activity Centre is 1.2 miles outside Chepstow on the left hand side.