Best natural monuments around Ponts-Et-Marais are primarily found along the Bresle Valley and the nearby Alabaster Coast. Ponts-Et-Marais, situated in the Seine-Maritime department of Normandy, is characterized by diverse landscapes including forests and valleys. The region offers access to significant natural features, particularly the dramatic chalk cliffs that define the coastline. These geological formations provide opportunities for outdoor activities and scenic exploration.
Last updated: July 5, 2026
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you don't have to take the cliff top path on the last stretch to Treport funicular
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Above the cliffs of Le Treport there is a great view over the city, the sea and the cliffs of Mers-les-Bains.
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The cliffs are made of chalk and are impressive to look at.
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Here in Ault begin the chalk cliffs, which stretch all the way to Normandy and repeatedly appear as enormous cliffs.
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The cliffs around the beach of Ault are composed of chalk from the Upper Cretaceous, more precisely from the Turonian and Coniacian (around 83 million years ago to 90 million years ago). They are strewn with flint nodules which highlight the subhorizontal stratification planes (the formation of flint has already been discussed in Discovery of the geology of the cliffs of Étretat, presentation of an excursion from the beach of Tilleul (Antifer) to the Porte d'Amont (Étretat Nord)). The relative proportion of chalk and flint is around 90-95% chalk to 5-10% flint. Flint horizons are stratigraphic markers. On the cliffs of Ault, the regular flint band called Seven Sisters is recognizable and characterizes the boundary between the Middle Coniacian and the Upper Coniacian (around 87 million years ago). The boundary between the lower and middle Coniacian is marked by the Shoreham 2 marl level, which is more difficult to identify. These lithostratigraphic markings allow in particular the correlation of distant deposits, such as between the Normandy and Picardy coasts, or between the French and English coasts.
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The region around Ponts-Et-Marais is characterized by the diverse landscapes of the Bresle Valley, featuring forests, valleys, and lakes suitable for watersports and fishing. Additionally, the dramatic chalk cliffs of the nearby Alabaster Coast, such as the Ault Chalk Cliffs and the cliffs near Le Tréport, are significant natural monuments offering breathtaking views.
Yes, the Bresle Valley offers accessible routes like the "Chemin Entre Verre et Mer," which is 18 km long and ideal for cycling and walking with benches and picnic areas. The Sainte Croix Marshes at Le Tréport also provide observation points and an educational trail, perfect for families interested in birdwatching. While some cliff paths can be challenging, the funicular at Le Tréport offers an easy way to enjoy the views of the chalk cliffs.
You can find a variety of hiking trails. The GR21 coastal path winds along the cliffs of Le Tréport, offering invigorating hikes with stunning sea views. Near Ault, the Sentier Du Littoral provides rewarding coastal panoramas. For more options, explore the hiking routes around Ponts-Et-Marais, which include moderate trails like the 'Eu and Le Tréport Loop' and more challenging options.
The Ault Chalk Cliffs are renowned for their impressive geological formations, composed of Upper Cretaceous chalk embedded with flint nodules. They are part of the Opal Coast and feature unique markers like the "Sept Sœurs" flint band. Visitors appreciate the striking contrast of white cliffs and green foliage, along with extensive views towards the Bay of Somme.
For the highest cliffs, head towards Criel Plage, where the White cliffs reach up to 106 meters on the Mont-Joli Bois. These majestic formations are part of the Côte d'Albâtre and offer a magnificent spectacle, especially at sunset, framing the Criel pebble beaches.
Yes, cycling is a popular activity. The "Chemin Entre Verre et Mer" in the Bresle Valley is ideal for cycling. Additionally, the coastal trail along the cliffs near Le Tréport is bikable and passes some awesome viewpoints. You can discover various routes, including easy and moderate options, by checking the cycling guide for Ponts-Et-Marais.
The spring and summer months generally offer pleasant weather for exploring the natural monuments and engaging in outdoor activities. However, the dramatic coastal landscapes can be enjoyed year-round, with autumn providing unique light for photography and birdwatching opportunities at the Sainte Croix Marshes during migration seasons.
At La Cise Cliff, you can observe chalk from the Upper Cretaceous period, specifically from the Turonian and Coniacian ages. These cliffs are strewn with flint nodules that highlight subhorizontal stratification planes. A notable geological marker is the regular flint band called the "Seven Sisters," which characterizes the boundary between the Middle Coniacian and Upper Coniacian periods.
Absolutely. The Viewpoint overlooking the cliffs of Le Tréport offers an impressive perspective of the chalk walls and the particular vegetation that has adapted to the difficult conditions. The cliffs of Ault also provide extensive views of the coast and the Bay of Somme, marking the beginning of the Normandy cliffs.
The Bresle Valley is home to lakes suitable for watersports and fishing. For those interested in mountain biking, there are several trails available. You can explore various routes, including moderate and easy options, by looking at the MTB trails around Ponts-Et-Marais.
Visitors frequently highlight the dramatic natural spectacle of the chalk cliffs, the breathtaking panoramic views of the English Channel and the Bay of Somme, and the opportunities for invigorating hikes along the coastal paths. The unique geological formations and the peaceful atmosphere of areas like the Bois de Cise are also highly appreciated.


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