It was then closed by the British Railways Board on 7 December 1964 (concurrently with the line from Caernavon, both as a result of the Beeching Axe).

Those from Paddington would reach it on Cambrian rails through Machynlleth and Porthmadog, proceeding onward to terminate at Pwllheli.

From Euston the train would travel via Crewe, Bangor and Caernarfon: at Afon Wen the front portion of the train would proceed forward to terminate at Porthmadog and the rear carriages would be detached for Pwllheli.

Afon Wen is often quoted as a defining feature of the Great Western Railway in Wales, namely its inheritance of junctions in unlikely and inconvenient locations.

The only evidence of the junction that can now be seen from Cambrian Coast trains is the earthworks of the line heading north and the island platform, although the branch side has been filled in.