I've had some great times at this little railway, adn is great for getting to and from the beach with its handy halts along its length.
http://www.fairbournerailway.com/
The stock is very comfy and the scenery is breathtaking. it has in the past been utilised fro a replacement service for Arriva trains Wales.
http://en.wikipedia.org/wiki/File:Fairbourne_train.JPG
http://upload.wikimedia.org/wikipedi...Beach_Road.jpg
The railway is very handy to coincide with Cambrian main line steam trips and the carriages offer a great moving vantage point from which to photograph the train. Different views and often you can keep a decent pace despite the railway's diminutive size.
When I visited The railway was still called the Fairbourne and Barmouth railway, so was around the time of 2004/5, so a detailed description I cannot give you, only that the locos are stunnign half size replicas of their 2" gauge counterparts, such as a version of Lynton and Barnstaple Lew, named Yeo.
If youre in the area, do have a visit. On a fine day you won't want to leave.