If you are with a GF/wife with you, and have 2 days go to Brugges, Belgium.
I have heard so much abt the place for many yrs, finally went last year, exceeded already high expectations. Very charming place, a perfect relaxing rest stop between London and AMS. I then took the train to AMS through Antwerp, it was very easy.
And, more importantly, it has one of the best beer bars in the world called "'t Brugs Beertje".
http://beeradvocate.com/beer/profile/964/?view=beerfly