When I was a kid living at Wrington then Redhill in the 1950s we would sometimes go across to Barry Island, usually on Sundays, for the funfair there. We usually went over from Weston Old Pier but occasionally we'd go from the landing stage at Hotwells, Bristol, by the old Rocks Railway entrance. I suppose we were travelling in the opposite direction to the Welsh drinkers.
When the British version of Candid Camera started in the early 1960s the main man was a joker called Jonathan Routh.
One stunt involved him setting up a customs and immigration post on the Old Pier at Weston to meet an incoming White Funnel steamer from Wales. As they tried to disembark the passengers were told that when they'd been on the 'high seas' (I still remember that expression being used), ie the Bristol Channel, Wales had declared independence and they would have to go through immigration and customs to enter England.
It sounds ridiculous these days - as if anyone would believe it. But a number of passengers did accept it without challenge and were prepared to return to Wales rather than enter a foreign country. Looking at it at the time I found it one of the funniest CC sketches. You have to remember that there was not the instant communication of today. News bulletins on tv and radio were few in number and not instantly up to date as we expect these days. Consequently most people were not as well informed about all sorts of things as perhaps they are in 2016.