Well the are few climbs which can put hurt to few. Hopefully we'll be surprised with this stage in good way
Km 132.0 - Côte de L'Éperche 0.7 kilometre-long climb at 6.9% - category 4
Km 163.5 - Côte de Mont Violette 1 kilometre-long climb at 9.2% - category 3
Km 181.0 - Côte de Herquelingue 1.7 kilometre-long climb at 5.8% - category 4
Km 185.0 - Côte de Quéhen 1.4 kilometre-long climb at 5.9% - category 4
Km 190.5 - Côte du Mont Lambert1.3 kilometre-long climb at 8.4% - category 3
Km 197.0 - Boulogne-sur-Mer 0.7 kilometre-long climb at 7.4% - category 4