Depends if you like travelling by train I guess. The route is decent though, especially after Swansea, where there are good sea views :)
Is this worth it just for the long train ride?
I used to live in tenby so completely agree! Don't get off at Saunderfoot though, long walk to the village and no Uber!
Thanks, seems like its dock
Do you mean Pembroke, Pembroke Dock, or Pembrokeshire? Pembroke Dock = not much other than the ferry. Pembroke = has a fantastic castle - one of the best in the country IMHO Pembrokeshire = loads! Amazing beaches, castles, the Pembroke coast national park, Oakwood, Tenby, Skomer Island, etc. Google for more...