Criel-sur-Mer - Prés salés et zone humideCriel-sur-Mer - Prés salés et zone humide
©Criel-sur-Mer - Prés salés et zone humide|M. Bosse-Panelle
Our natural spaces

Our natural spaces

Discover the protected areas of our territory

Located throughout the Destination Le Tréport-Mers, the wetlands make up a natural and sensitive heritage that it is important to preserve. In addition to playing a major role in favor of biodiversity, these natural areas allow locals and visitors to immerse themselves in natural settings that are as wild as they are peaceful. Over the seasons, walk through these spaces and discover the landscaped discovery trails, which will allow you to learn more about the functioning of these natural spaces.

Le Hâble d’Ault

During the Middle Ages, this area located between land and sea was a famous port. This is why the origin of hâble comes from the word hâvre, which means port. Over the years, the body of water was separated from the sea by a dike in order, in particular, to protect the dwellings from bad weather due to the proximity of the sea. Nowadays, the Hâble d’Ault constitutes a unique site in France. This avifauna reserve is protected by a bead of pebbles, which allows 270 species of birds to find refuge in this wetland.


Our tip

During a 13 km hike (approx. 4 hours), discover Le Hâble d’Ault. This loop will allow you to meet there, in peace and serenity, the species that coexist throughout the year. Loop n ° 15 – Les Huttes on the hiking map.

The wetlands of Criel-sur-Mer

The salt meadows of Criel-sur-Mer

It is on the seafront that the salt meadows are revealed before your eyes. This natural area has many functions. Indeed, during floods and storms, these lowlands collect the strong water runoff. In addition to being recognized for its flora and fauna, the Lower Yères Valley is classified as a Natura 2000 site and a sensitive natural area.

The Manoir de Briançon wetland

Want to extend the walk? Continue towards the town center, where a clever mix of heritage and nature awaits you. It is at the Manoir de Briançon and more precisely behind this 12th century building. That the municipality has developed a route within this wetland.

Take the time to observe the ducks rushing to beg you for bread or diving into the Yères, enjoy the company of donkeys and cows present (depending on the season) who promote eco-grazing.

The Longroy ecological garden

On the edge of the Bresle, discover the ecological garden of Longroy. By developing this space, the municipality wanted to reinvest this space with its primary and essential role: to improve the quality of the water that flows into the Bresle, a river that flows near there. Thus, by its function of purification buffer zone, birds and fish were able to take back possession of this preserved natural space.

In addition to the ecological and landscape interest, there is also an educational interest since a discovery trail has been laid out so that locals and visitors can discover the places thanks to the installation of descriptive panels. During your walk, take advantage of this moment of tranquility to get closer to nature.

Our tip

The town of Longroy is the start of many hikes in our territory. Thanks to these trails, offer you a natural escape in the valley of the Bresle.  On our hiking map follow the hikes: Loop 12 – La Tuilerie, Le Chemin entre Verre et Mer and the equestrian loop E1.

Le Marais Sainte-Croix au Tréport

Located at the mouth of the Bresle, where fresh water and salt water meet, dive into the heart of the Marais Sainte Croix. Due to its facilities, this walk in lush greenery would almost make you forget that you are still in Le Tréport. Along the paths and canals, take the wooden pontoons that will lead you to the various huts that constitute the observation points. There, in front of you open your eyes wide and observe what is happening there, maybe you see a crane or even a heron?

Rich in its biodiversity, the Marais Sainte-Croix also marks the starting point of the Chemin Entre Verre et Mer which continues for 18 km through the Bresle Valley, to Longroy and Gamaches.