As you are approaching on the M4, exit the M4 at Junction 24. At the roundabout follow The Celtic Manor Wales Open signs along the A48 towards Chepstow / Langstone. You will be directed to a car park along Catsash Road.
For live traffic reports and journey planning advice contact the Welsh Assembly's traffic information Centre on 0845 6026020 or view http://www.traffic-wales.com/