For many years, our experts have been chasing down the best activities on the planet's greatest cities and coolest areas. Every year brings more fresh out of the box attractions, events and things to do around the world than anyone could experience in a lifetime. Our local guides and supporters make it their main goal to scope out the very best experiences out there and add them to their local DO List: the essential guide to the best activities to do in every city, country and region they cover. So check out to find out about the best things to do in Rouen/Vallée de Seine after your arrival.