Bristol Bus Station / Cribbs Causeway / Service Number X7 Chepstow Bus Station / Cribbs Causeway Bus Station / Chepstow Bus Station Caldicot Cross Magor Withy Walk Newport Bus Station / Service Number X7 Bristol Bus Station / Chepstow Bus Station Newport Bus Station / Service Number Bristol Bus Station Cribbs Causeway Bus Station Chepstow Bus Station / A Station / Chepstow Bus Station / /