Any seaside resort terminus (or through station) that you care to mention, with the possible exception of Blackpool North and Bournemouth. The rot set in with the arrival of cheap package holidays in the Med from the early 'sixties onwards....and then accelerated rapidly over the past 30 years following the launch of cheap airlines such as Ryanair and EasyJet. Southport, Great Yarmouth, Weymouth and Morecambe have already been mentioned....other such stations which come to mind which are now mere shadows of their former selves include Largs, North Berwick, Saltburn, Whitby, Scarborough, Bridlington, Cleethorpes, Skegness, Margate, Ramsgate, Hastings, Eastbourne, Worthing, Littlehampton, Bognor Regis, Exmouth, Newquay, Aberystwyth, Pwllheli, Llandudno and Rhyl.