| 4 hairpin turns |
| #46 average steepest climb of Hauts-de-France |
Les 4 lacets de Boulogne-sur-Mer is a climb in the region Caps et Marais d'Opale. It is 0.6km long and bridges 55 vertical meters with an average gradient of 8.9%, resulting in a difficulty score of 53. The top of the ascent is located at 67 meters above sea level. Climbfinder users shared 1 review/story of this climb and uploaded 9 photos.
Road names: Rue de la Baraque de l'Empereur & Rue du Baron Bucaille
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Behind the main boulevard of Boulogne-sur-Mer (Boulevard Sainte-Beuve) 4 hairpin bends are hidden. From the Aquarium you can drive in 4 steep hairpins to the higher parts of Boulogne. A must for the hairpin fan to try. On the other hand, those who prefer not to cycle in an urban area, better skip it.
Achter de grote Boulevard van Boulogne-sur-Mer (Boulevard Sainte-Beuve) liggen 4 haarspelden verborgen. Vanaf het Aquarium rijdt je in 4 steile haarspelbochten naar de hogere delen van Boulogne. Een must voor de liefhebber van haarspeldbochten om eens een keertje te proberen. Daarentegen, degene die liever niet binnen stedelijk gebied fiest, kan deze beter overslaan.
| 7 km/h | 00:05:18 |
| 11 km/h | 00:03:22 |
| 15 km/h | 00:02:28 |
| 19 km/h | 00:01:57 |
