The National Diving & Activity Centre Forest of Dean and Wye Valley
NDAC Servicing
SITA - The Scuba Industries Trade Association
Scuba Quest



Following the Government’s announcement, we will sadly be closing the National Diving & Activity Centre for the remainder of November.

Any bookings made for the lockdown period will now be deferred. We will not be issuing refunds, but will provide everyone with a deferral code that can be used to rebook when we reopen.

We would like to thank all our customers and staff for the support and understanding you’ve given us and wish you all well in the coming weeks.

We look forward to welcoming you all back in December when the lockdown ends.

Darren & Kaye

Full details »

Activities & Events

Site Facilities

Diving Information

Centre Information

National Diving & Activity Centre
NP16 7LQ

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.

Learn to Scuba Dive....

NDAC Christmas Vouchers


Book Scuba Diving Online for NDAC



Upcoming Courses for the next few months at the NDAC Dive School many more online >

Open Water Diver

Advanced Open Water Diver

Emergency 1st Response Primary Care (CPR), AED Use & Secondary Care
(Update Courses On Request)

Speciality Courses

PADI Enriched Air Diver Speciality / SDI Computer Nitrox Diver

SDI /PADI Dry Suit Diver Speciality

PADI/SDI Peak Performance Buoyancy Speciality

PADI / SDI Night Diver Speciality

Technical Diving Courses

TDI Intro to Tech

TDI Air Diluent Rebreather Diver

TDI Advanced Nitrox & Decompression Procedures

For Speciality and Technical Courses we provide custom courses on request throughout the year to suit your time schedule. Contact us for further details and to arrange a date.


NDAC Dive Equipment Servicing

Regular servicing of your equipment is very important for safe and reliable performance and to ensure your expensive kit has a long life.


To help our customers we are offering an onsite equipment servicing and repair service. For further details of the specific equipment servicing available at the centre and prices please visit our servicing information page. more>

AquaLung Apeks Premier Service Centre


Saltfree Freediving at NDAC

SaltFree are a group of freedivers and their scuba safety team united by a love for plunging into the depths of the National Diving and Activity Centre. more>

The National Diving & Activity Centre in Chepstow has been awarded a 2015 Certificate of Excellence from TripAdvisor, the world’s largest travel site. Please let us know how your visit was


Review the NDAC on TrustPilot


The NDAC Wooden Wigwams are here! Click for further information
Book your NDAC Wooden Wigwam Now!


Site Plans for the NDAC


The View Cafe Bar opens at the NDAC on Friday 6th April 2012


Location of NDAC


The Wire Zip Slide Chepstow

The Wire Zip Slide is available for bookings at the National Diving & Activity Centre in Chepstow.

Book on the Wire

The Wire is one of the UK's longest, tallest and fastest zip slides, running the 700 metre length of the NDAC Quarry.

Launch yourself from the 70m high cliff edge and speed along the length of our 80m deep flooded quarry.

Reaching speeds up to 40 miles per hour this exhilarating ride will take your breath away!

Book a place on the Wire Zip Slide
Buy a Gift Voucher

Book a place on the Wire Zip Slide »

Buy A Gift Voucher »

List of available dates »

70 Double Decker Busses Long


Fly board at the NDAC Chepstow


NDAC Gift Vouchers

Give your friends or family members a unique gift with an adventurous experience at the National Diving & Activity Centre.

We have Gift Vouchers available for the Wire Zip Slide, Atlantis Aqua Park, Giant 3G Swing and our range of Wooden Wigwam glamping accommodation.

700m Wire Zip Slide Gift Vouchers »

Atlantis Aqua Park Gift Vouchers »

Giant 3G Swing Gift Vouchers »

Wooden Wigwam Gift Vouchers »



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How we use your information»

Covid-19 Control Measures for the NDAC

Response to the Coronavirus outbreak

updated 01 Nov 2020

Latest News

Christmas Gift Vouchers available for Activities, Scuba Diving and Drive-In Cinema.

NDAC Christmas Vouchers

updated 15 Nov 2020

NDAC filming location for Black Lakes music video.

Black Lakes Deathrone Music Video

updated 07 Oct 2020

Scuba Diving Booking System - Thanks for all your support; spaces are filling up fast.

Scuba Booking System

updated 13 Oct 2020

NDAC current Membership to extend until 31st March 2021.

NDAC Membership Card

updated 07 Oct 2020

New kitting-up benches & improved seating area for Scuba Divers.

Kitting up benches NDAC

updated 02 Oct 2020

Cromhall Diving underwater attractions find new home at NDAC.

Cromhall Diving Underwater Attractions

updated 01 Oct 2020

New pontoon sections installed on the NDAC lake.

New pontoon sections

updated 30 Sep 2020

Fascinating video on Tidenham Tunnel, destined to be the 2nd longest tunnel on the country’s cycle network when it reopens as part of the Wye Valley Greenway.

Tidenham Tunnel, destined to be the 2nd longest tunnel on the country’s cycle network when it reopens as part of the Wye Valley Greenway. ©Graeme Bickerdike/Forgotten Relics

updated 17 Sep 2020

Rock stability netting installed at the National Diving & Activity Centre

 Wye Valley Greenway shared use path

updated 10 Sep 2020

Recent works on Tidenham Tunnel to create shared use path.

 Wye Valley Greenway shared use path

updated 24 Aug 2020

National Diving & Activity Centre to reopen for Scuba Diving from Saturday 31st October.

National Diving & Activity Centre to reopen for Scuba Divers from Saturday 31st October

updated 12 Aug 2020

NEW Online Booking System for Scuba Divers at National Diving & Activity Centre available now.

NEW Online Booking System for Scuba Divers

updated 12 Aug 2020

Cashless transactions at the National Diving & Activity Centre.

Cashless Transactions at the NDAC

updated 06 May 2020

Geotechnical site works at the National Diving & Activity Centre

Site improvements at NDAC

added 12 Mar 2020

New smoking/vaping area

Smoking/Vaping Area

added 12 Mar 2020

Updates on the Wye Valley Greenway project

St Patrick's Day Dance and Fundraiser

added 06 Dec 2019

Greenways and Cycleroutes Limited organised a volunteer work camp to repair a bridge and to install and replace boundary fencing on the former railway line between Chepstow and Tintern

Wye Valley Greenway Workcamp

added 05 Dec 2019

National Police Underwater Search Unit Exercise held at NDAC

Police Underwater Search Unit Exercise at NDAC

added 28 Nov 2019

Infrastructrure works and slipway improvements.

Infrastructrure works and slipway improvements

added 22 August 2019

Meet Bertie the Fish, our newest underwater attraction.

Bertie the Fish

added 17 Jun 2019

We've been awarded a 2019 Certificate of Excellence from TripAdvisor and qualified for the Certificate of Excellence Hall of Fame.

Qualified for the Certificate of Excellence Hall of Fame.

added 05 Jun 2019

New underwater attraction lowered into place at the NDAC Chepstow

Underwater Attraction

added 26 Mar 2019

Groundworks complete for new Wire Zip Slide lines.

Wire Groundworks

added 18 Mar 2019

Final checks on our latest underewater attraction

Underwater Attraction

added 19 Mar 2019

Opening Times


The National Diving & Activity Centre is closed for the lockdown period of November. We hope to reopen for Scuba Diving and provide Wigwam accommodation in December. Full Details ›

The other activities at services at the site are under constant review, but are expected to reopen in 2021


Scuba prices for

Diver entry fee: £22.00 per person, or £16.00 for members
Personal Centre Membership: 1 year £45.00 ( £40.00 for renewals) more>

Freedivers pay a reduced entry fee of £10.00

Classroom £25.00 per half day / £50.00 per full day (hourly rate can be agreed).

Night Dives
NDAC Members Night Dive £16.00
Non Members Night Dive £22.00
Non Divers Free entry

Prices as of 01 April 2020

National Diving & Activity Centre, Tidenham, Chepstow, Gloucestershire, NP16 7LQ. Tel:    Email | Website & Design by Studio JERO