Had an online ERSA Conference yesterday and confirm the the event will be close to Le Mans and the dates are 9-12 July. Cost to enter is 80 Euro's which includes camping on site, the Saturday meal and the Rod Run. Approximate mileage from the French ports are Ouistream 150Km, Le Havre 200Km, Dieppe 260Km and Calais 411Km. I will be visiting the site sometime in October and will have more information then