The railway is never far away from Dduallt and the line runs above the house, about a minute's walk from the front door. There is a private platform accessible only by the guests of Dduallt from which passing trains can be hailed. Just stick out your hand and a steam train will grind to a halt.

The platform provides a great vantage point from which to appreciate trains coming up the line. You can hear the distant whistle as they pull away from Tan y Bwlch station and as they approach the plumes of steam puff out above the trees. Finally the train emerges rounding a bend from which you get a panoramic picture of a dozen carriages chugging their way up the hillside.

The old siding from Colonel Campbell's day has gone but remnants of the electric winch can still be seen. In days gone by this was used to hoist goods through the trees down to the house.

Weekly rover tickets are available to guests and in 2008 the price of an adult ticket is £17.50 and £8.75 for a child.