The S&D has had a few narrow gauge connections. There was a 2' 6" gauge mainly roadside line linking Binegar with Oakhill Brewery, also a 2' (?) gauge peat line that crossed the branch and was involved in an accident in the 1950s when a branch train collided with a peat train in the fog. The flat crossing was apparently totally unprotected by signals! There was also the never-opened Tuckingmill Tramway at Midford, which was mooted in the 1980s.
Today we have the fantastic Gartell railway, just south of Templecombe, which although new build is very aware of the S&D connection. There is a small museum on site, also the three train sets are in the S&D colours of Prussian blue, Southern green and Midland maroon. Part of the Gartell Railway is laid on S&D trackbed, and is now being extended northwards closer to Templecombe. This is a gem of a line, fully signalled, very friendly and with a great family atmosphere - very S&D!
Operating days in 2006 are 25 June, 30 July, every Sunday in August, 28 August (Monday), 24 September and 29 October. Extensive train services are run, there are also excellent catering facilities on site.
There's another NG line quite close to the S&D, at the Bath and West Showground near Shepton. This is a superb 7 1/4" gauge line operated by East Somerset Model and Experimental Engineers, and will be running public trains at the Bath and West Show. Stage one was opened last year, the new extension along the stream towards the lake is now laid and should be operational this year.
As for the future it would be nice to see the Oakhill line relaid (possibly as a metre-gauge electric line?) connecting at Binegar, and eventually a link from Evercreech or nearby to the Bath and West Showground so that visitors can continue to enjoy the numerous shows there even after the end of road transport. And possibly the Bath Tramways, when rebuilt, will be narrow gauge including the link between Bath Spa and Bath Green Park.