Andy,
Not sure if you are travelling to the North but it has plenty of great destinations. Our Morgan club based here head off on runs throughout the summer. Can't remember a traffic jam this century but you may get stuck behind a tractor if you are really unlucky.
Popular destinations for us are Fermanagh and the lakes, The north coast and Giants Causeway, The Glens of Antrim and coastal route, the Strangford peninsular and ferry from Portaferry, The mountains of Mourne and Newcastle county down. Belfast Titanic quarter. Mount Stewart (visited by Prince Charles last week}. Castle Ward {Game of Thrones setting}. I could go on but it is also very popular with golfers and Rory might cause a traffic jam or two at Royal County Down this week
Dave