Britain's only rack railway has been shoving carriages up Yr Wyddfa since 1896, some behind original steam locomotives, and the reward is the summit view across Eryri to the sea — cloud permitting, which is roughly a coin flip. Trains sell out days or weeks ahead in summer, so book online early and pay the supplement for steam if romance matters to you. If the summit is clagged in, Llanberis consoles with the excellent National Slate Museum.
Featured in Ten mountain railways with views you won't believe · Mountain
