From North Wales mainland, cross the Britannia Bridge onto Anglesey. Continue West along the new A55 Dual Carriageway for approximately 12 miles. Look for the White on Brown tourism sign for the circuit at Junction 5. Follow the A4080 signposted Rhosneigr and Aberffraw. Continue past Rhosneigr, which is situated to the right of the A4080 on towards Aberffraw. Just under 5 miles from leaving the dual carriageway (A55) look for White on Brown Tourism signs at a small crossroads and turn right towards the circuit.
Visitors travelling from the Port of Holyhead should travel east along the A55 for approximately 7 miles then take the A4080 from Junction 5 as described above.