The campaign features two of the biggest events taking place in the region this year, the Armada ships festival in Rouen and the Normandy Impressionism festival with exhibitions in Caen, Le Havre and Rouen.
Tourism chiefs decided to promote the region at the station as it is the second biggest in Europe with 450,000 passengers passing through each day. It is expected that around five million people will view the giant posters, the videos and the brochures that are being distributed during the campaign which ends this week.
Some 50 eight meter square posters have been put up at the entrance to the platforms and a further 10 giant 10 meter posters are suspended across the concourse of the busy main station. Also 47 digital screens are showing videos promoting Normandy and 85,000 leaflets being distributed.
A spokesman for the Normandy Regional Tourism Committee (CRT) said that marketing plans are bold this year after tourism numbers fell last year and in 2011 due to the weather and economic downturn and both Lower and Upper Normandy regions asked for help.
Normandy is still the eighth most popular region for French holiday makers in France and the fifth most popular for short breaks. It employs 45,100 people all year around, rising to 57,000 in the peak holiday months of July and August.
The CRT plans to repeat the campaign next year when a number of key events take place in Normandy, most notably the 70th anniversary of the D-Day landings and the Battle for Normandy, the World Equestrian Games and the opening of the new pedestrian bridge to Mont Saint Michel which will see the Mont returned to its original status as an island.