Originally Posted by
NewbieRunner
And in case anybody not familiar with the geography of Great Britain and Wales in particular is reading this, travelling between north and south Wales by train (if at all possible) takes longer than between north Wales and London and you can only travel via England.

http://www.arrivatrainswales.co.uk/PremierService/
Not only is is possible, you can also do it 1) in style and 2) heavily subsidised by the taxpayer...