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

Diving Times

(Clear of water 1 hour before end of session)

Christmas/New Year Opening Times »

Activity Times

Activities are open most weekends, bank holidays, selected dates during School Holidays & occasional mid week dates.

Please see our full opening times ›

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....


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

NDAC Try-A-Dive Experience
• 2020 dates coming soon…

Open Water Diver
• 04/05 & 11/12 Jan 2020
• 2020 dates coming soon…

Advanced Open Water Diver
• Sat 14th Dec 2019
• Sat 25th & Sun 26th Jan 2020
• 2020 dates coming soon…

Rescue Diver
• 2020 dates coming soon…

Emergency 1st Response Primary Care (CPR), AED Use & Secondary Care

• 2020 dates coming soon…
(Update Courses On Request)

Speciality Courses

Technical Diving Courses

TDI Extended Range

• Fri 10th - Sun 12th Jan 2020

TDI Advanced Nitrox & Decompression Procedures

• 18/19 & 25/26 Jan 2020

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>


UK Dive Centre Membership Card

Find out about the savings that can be made through Membership of the National Diving & Activity Centre >



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


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 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 »

List of available dates »

Follow The Wire on Twitter @TheWireChepstow

70 Double Decker Busses Long



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Follow us on Twitter @NDAC_co_uk



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Latest News

National Police Underwater Search Unit Exercise held at NDAC

Police Underwater Search Unit Exercise at NDAC

added 28 Nov 2019

Suunto will be at our final Night Dive of 2019 with a fantastic range of torches and dive computers for you to try.

Suunto at Night Dive  NDAC

added 28 November 2019

NDAC Closed Sunday 26th - Friday 31st January 2020

Site Closed 26-31 Jan 2020

added 12 Nov 2019

Christmas and New Year opening times for 2019/20

Christmas Opening Times

added 12 Nov 2019

Unique wedding proposal at FearFest-Evil.

FearFest-Evil House of Hell

added 03 November 2019

FearFest-Evil returns 2020 with 'House of Hell'. Discounted Early Bird Tickets are available now.

FearFest-Evil House of Hell

added 03 November 2019

Scuba Night Dives in November & December.

Night Dives NDAC

added 29 October 2019

Join us for delicious food and live music at our Christmas Dinner & Dance - Perfect for office, club and group Christmas parties. 13th & 14th December, tickets only £15

Office Christmas Party Chepstow

added 27 Sep 2019

Review & Win tickets to FearFest-Evil 2020.

Review & Win

added 14 October 2019

Winter Opening Times are now in place. From November - February (Half-Term) we will be closed on Thursdays,

Winter Opening Times

added 02 October 2019

FearFest-Evil wins 2019 ScareCon SCAR Award for 'Best Multi-Part Scream Event'

ScareCon Scare Awards

added 10 Jun 2019

Infrastructrure works and slipway improvements.

Infrastructrure works and slipway improvements

added 22 August 2019

We have a vacancy for a Supervisor at the View Cafe Bar.

Supervisor View Cafe Bar

added 9 Jul 2019

We have a vacancy for a Chef at the View Cafe Bar.

Chef View Cafe Bar

added 9 Jul 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

Rock Works & Out of Bounds Area at Southern End of NDAC Lake

Rock Works

added 25 Jan 2019

Site improvements works at the NDAC

Infrastructure Works

added 22 Jan 2019

Additional 250m of floating pontoons to be installed

New Pontoons

added 09 Jan 2019

New underwater scuba diving attraction arrives at the NDAC

Hyperbaric Chamber

added 04 Jan 2019

Toll booths will be removed from the Severn Bridges over the 14th - 19th December.

Severn Bridge

added 14 Dec 2018

National Diving & Activity Centre (NDAC) finalists in two categories for the Welsh Hospitality Awards 2018.

Welsh Hospitality Awards 2018

added 6 Nov 2018



Opening Times

Thursday Closures between November & February Half-Term »

Christmas & New Year Opening Times 2019/20 »

NDAC Closed Sunday 26th - Friday 31st January 2020 »

Diving Times Winter (01 October - 31 March inclusive) 
Monday: CLOSED (open Bank Holidays)
Tuesday: CLOSED
Wednesday: CLOSED
Thursday*: 0930 -1700 (*Closed 1st Nov until after Feb Half-Term.) 
Friday: 0930 -1700
Saturday: 0800 - 1700
Sunday & Bank Holidays: 0800 - 1700
Clear of water by 1600

The Wire Zip Slide & The Swing
The Wire & Giant 3G Swing are open most weekends, bank holidays, selected dates during School Holidays and occasional mid week dates.

Please check the individul activity pages for availability.

Book your place on the Wire here »

Book your place on the Giant 3G Swing here »

The View Cafe Bar - Opening Times
   Monday to Wednesday: Open during School Holidays.
   (Open on Cinema Screening dates, Bank Holidays & any dates the Wire/ Swing are open)

   Thursday*: 0930 - 2100 (*Closed 1st Nov until Feb Half-Term. Open during School Holidays) 
   Friday: 0930 - 2300
   Saturday 0800 - 2300
   Sunday & Bank Holidays: 0800 - 2100

   Breakfast: 0930 - 1130 (0900 - 1130 at weekends)
   Lunch: 1130 - 1800
   Dinner: 1800 - 2100
   Bar open: 1100 - 2100 (2300 Friday & Saturday)


Scuba prices for

Diver entry fee: £20.00 per person, or £15.00 for members
Personal Centre Membership: 1 year £40.00 ( £35.00 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 £15.00
Non Members Night Dive £20.00
Non Divers Free entry

Prices as of 08 July 2019

National Diving & Activity Centre, Tidenham, Chepstow, Gloucestershire, NP16 7LQ. Tel:    Email | Website by Studio JERO | Hosted on Pipe10 Servers