I have recently joined this forum and have a peculiar route/ticketing question that I hope someone can answer. I live in North Norfolk and often travel from Kings Lynn to Kings Cross and then onwards to the south coast (Portsmouth/Bournemouth/Weymouth etc). I always attempt to buy the cheapest tickets, whilst varying the route using split or single advance tickets if possible. As part of a recent 'circular' journey from Kings Lynn to Bridport and back, I bought an advance single from Dorchester South to St Albans. I was quite surprised that the National Rail suggested journey was Dorchester South to Waterloo and then 'make your own way to Blackfriars' (40 minutes allowed for the walk!), and then Thameslink to St Albans. I have bought cross London through tickets for many years and there has always been a suggested underground connection before. I realise that they are probably saying you can take the underground if you want but in this case it is probably quicker walking between the two stations. On a sunny day this is a lot pleasanter than catching the Victoria and Bakerloo lines and you are also able to have a quick pint in the Black Friar- all within the suggested 40 minute transfer time. Is the Thameslink route from Kings Cross to Blackfriars (for Waterloo) an acceptable through London link? ie if I buy an off peak return from Kings Lynn to Portsmouth or Bournemouth, can I travel from Kings Lynn to Kings Cross, Thameslink to Blackfriars and then walk to Waterloo for a train to Portsmouth?