In Caernarfon, after crossing St Helens Road, the line gradually drops down to street level and crosses the road again, heading to the slate quays to end in a complex of 3ft 6in lines serving the quaysides. All trace of the line is lost, but its influence on the geography of the area is still evident.

Little is to be seen of the line on its final approach to Caernarfon but the route is easily traced by the pattern of developments which occurred around it