For generations, the Firth of Clyde was a favourite holiday destination for millions of Scots, both rich and poor. In this Grand Tour of Scotland, presenter Paul Murton explores the delights of this famous stretch of water. Here you could enjoy healthy sea breezes - take a dunk in the briny, mess about in boats, enjoy a glass or two of your favourite tipple - or, if you had the money, all of the above at the same time!