The Fairbourne Railway has been running from Fairbourne village to the mouth of the Mawddach Estuary, connecting with the ferry to Barmouth for over 100 years. It started as a two foot gauge horse-drawn tramway which was then converted to a 15 inch gauge railway in 1916. The line in 1986 was completely re built to a 12.25 inch gauge. To date [01/2021 ] I have only visited the Fairbourne railway once , when it was a 15" gauge line . The visit was made via a explore Britain mystery trip excursion to Barmouth from Nottingham hauled by 2 class 25's , back in the 1970's.