The National Diving & Activity Centre

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Diving Times

(Clear of water 1 hour before end of session)

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.

Experience weightlessness 245ft in the air with the Giant 3G Swing at the National Diving & Activity Centre, Chepstow.

Experience Weightlessness 245 feet in the air
with our ultimate adrenaline-pumping blast!

Half Term Half Price

If you dare, you'll be strapped into the Giant 3G Swing, hoisted 50ft up into the air and slowly pulled back to the release point...

Then it is down to one of you to pull the ripcord!

After the initial terrifying drop, you'll launch into the air, feeling the G-force as you swing up into the sky, 245ft over the steep quarry edges of the UK’s Deepest Inland Dive Site.

You will then be momentarily weightless before accelerating through double gravity as you level out at the bottom.

You will continue to swing several times until our experienced staff bring you to a halt and carefully lower you down to the ground.

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

The Giant 3G Swing activity takes place at the National Diving & Activity Centre, near Chepstow. The NDAC is home to the UK's deepest inland dive site and one of the UK’s Longest Zip Wires. We have a range of other exciting activities you can try including Kayaking, Stand Up Paddle Boards and Flyboards. We also have a Wooden Wigwam Village and fantastic View Cafe Bar if you want to make a weekend of it.

What happens on the day

The Giant 3G Swing ChepstowUpon arrival you will be directed where to park and book in. Once you have booked in, completed all the necessary paperwork and issued with your wristband you can make your way over to our giant 3G Swing. We suggest heading over to the Swing itself around 10 minutes before your flight.

After a short safety briefing you are ready to be harnessed up and strapped into the 3G Giant swing as a pair.  You will both then be hoisted some 50ft in the air and pulled backwards to the release point.  

When ready you will then pull the ripcord to release yourself and feel the G-force as you fire up into the sky, 250ft in the air above our quarry. Then you will be momentarily weightless before accelerating through double gravity as you level out at the bottom.

Please note this experience during popular times or inclement weather may take longer that you anticipate to swing so please bear with us as sometime factors outside our control do occur from time to time.

This exhilarating challenge can also be viewed by loved ones from our viewing area at the View Cafe Bar.

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

What you need to know

You must be aged over 12 years and taller than 1.3m to ride The Swing. If under 16 you need to be accompanied by an adult/guardian

Maximum weight limit is 120kg (18.8 stone)

Lower Limit is 20kg (3.15 stone)

You will need to complete a Registration Form on arrival or bring a completed form with you. Download The Swing Registration Form »

Full Terms and Conditions>


The Giant 3G Swing ChepstowThe Swing Prices

Single Swing Experience £19.00

Night-Time Swing Experience £24.00 (after 6:30pm)

Book your ride on the Swing »

Souvenirs from your Swing Experience

Hoodies £19.99
T Shirts £7.50
Hoodie & T Shirt £25.00

Lanyards £2.00


Location of 3G Swing

The 3G Swing can be found at the National Diving and Activity Centre, we're on the A48 just outside Chepstow, NP16 7LQ.

Maps and directions to the National Diving and Activity Centre can be found online here>

Download a printable PDF of the map and directions> PDF


The Swing Dates

Activities generally run most weekends, bank holidays, some school holidays and occasional mid week dates.

Book your ride on the Swing »

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

November 2019

Saturday 09 November


Sunday 10 November


Saturday 16 November


Sunday 17 November


Saturday 23 November


Sunday 24 November


Saturday 30 November


December 2019

Sunday 01 December


Saturday 07 December


Sunday 08 December


Saturday 14 December


Sunday 15 December


Saturday 21 December


Sunday 22 December


Saturday 28 December


Sunday 29 December



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