The Tour peloton leaves Denmark after three days and arrives in France, on French roads known as the North. There is a 4th stage that climbs between Calais and Dunkirk.
"The hills can be overcome," race director Thierry Guvenou said. "But it will be crucial, because it can get very windy in Pas-de-Calais or the mountains of Flanders."
Six climbs are classified in the fourth category. They are all staggered along the course that follows the coast layout for the last 25 km.
The first is in Cassel (Km 30, the highest place of Four Days of Dunkirk), and the last is above the chalky Cliffs of Cap Blanc-Nez, (Km 160), which is one of many famous spots of the Cote-d' Opal.
"We can expect an extremely dynamic final", says the race director prior to the arrival judged at Pas-de-Calais, where sprinters can also hope for victory.
Calais (76,000 people) is the third recipient of the Tour. However, Calais hosted only one stage in the first two appearances of the Tour, in 1994, and 2001.