Best attractions and places to see around Ergnies include a variety of historic landmarks, natural features, and cultural sites within the Somme department of France. The region offers scenic landscapes along the Somme Valley and opportunities to explore significant architectural heritage. Visitors can discover a mix of man-made monuments and natural areas, many of which are a short distance from Ergnies.
Last updated: June 24, 2026
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A dilapidated mansion with what was once a beauty.
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Two impressive castles along the Somme.
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A very beautiful valley with a well-developed cycle path
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More information about the castle 🏰👇 https://www.chateaudelong.fr
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Very nice ravito at François in Long. Soft drinks, beer (Peace God draft for the hot ones), Fries etc...
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Château de Long is an 18th century castle located in the Somme valley. You can admire the architecture of pink bricks and white stones, the sculpted and painted decorations, the 20-hectare park with greenhouses and a wash house, and the 18th century dovecote. You can also discover the orangery, the ice house, the outbuildings, the 6 hectare pond and the 4 hectare wood. The castle is open Monday to Friday from 10:00 a.m. to 6:00 p.m. Château de Long is a private property which welcomes visitors wishing to discover its history and charm.
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The region offers diverse natural beauty, most notably the Somme Valley, which provides scenic landscapes and opportunities for outdoor activities. Further afield, you can visit the Forêt de Crécy for walks or the Baie de Somme, renowned for its diverse natural habitat and stunning scenery, including areas like Parc du Marquenterre and Réserve naturelle de la Baie de Somme for birdwatching.
Yes, the area around Ergnies is excellent for outdoor activities. You can find numerous routes for hiking, road cycling, and gravel biking. For instance, there are easy hiking trails like the "Around Long Lock – Long Castle loop from Long" or more moderate options like "Les Bords de Somme Trail." For cycling, explore routes such as "Around Long Lock – The Somme River loop from Ailly-le-Haut-Clocher." You can find detailed routes and guides for hiking, road cycling, and gravel biking in the region.
You can explore several historic castles. The prominent Long Castle, an 18th-century edifice with distinctive pink bricks and white stones, offers a 20-hectare park and historical elements. Another significant site is Pont-Rémy Castle, an old fortified castle from the 15th century that played a crucial role during the Hundred Years' War.
Absolutely. The Long Hydroelectric Power Plant, located on a branch of the Somme, is a rare example of pre-1914 small energy production units in France and is classified as a historic monument. Additionally, the Beffroi de Saint-Riquier, a UNESCO World Heritage site, is approximately 8 kilometers from Ergnies. Further afield, you can visit the impressive Amiens Cathedral.
Many attractions around Ergnies are suitable for families. The Somme Valley offers pleasant outdoor spaces for walks and exploration. Long Castle, with its expansive park, provides a great setting for family outings. The Long Hydroelectric Power Plant also offers an interesting educational visit for all ages.
The period from April to October generally offers the most pleasant weather for exploring the attractions and engaging in outdoor activities. Many sites, such as the Long Hydroelectric Power Plant, are open during this season. Spring and early autumn provide comfortable temperatures for hiking and cycling, while summer allows for full enjoyment of the natural landscapes and gardens.
Yes, the region boasts several beautiful gardens. You can explore the Jardin du château de Maizicourt, Le jardin des Lianes, and the Parc et roseraie du château de Rambures. Additionally, the formal gardens of Valloires Abbey, an 18th-century Cistercian abbey, are open for exploration and located about 34 kilometers northwest of Ergnies.
The lock keeper's house near the Long Hydroelectric Power Plant serves as a tourist information point. It offers insights into regional tourism, hosts exhibitions, and provides rentals for cycles and canoes, making it a convenient stop for visitors looking to explore the area actively.
Visitors particularly appreciate the blend of historical sites and natural beauty. The serene landscapes of the Somme Valley are often highlighted for their contemplative atmosphere and scenic views. The architectural charm of places like Long Castle and the historical significance of the Long Hydroelectric Power Plant also receive high praise for their unique character and well-preserved heritage.
While Ergnies is inland, the coastal resort of Le Crotoy is approximately 33 kilometers northwest. It is known for its long sandy beach and offers a different kind of natural experience compared to the inland river valleys and forests. The wider Baie de Somme area also provides stunning coastal landscapes and opportunities for birdwatching.
Yes, for wildlife observation, the Réserve naturelle de l'Étang Saint-Ladre is located about 35 kilometers from Ergnies, offering a chance to observe local wildlife and natural ecosystems. The Baie de Somme, particularly areas like Parc du Marquenterre and Réserve naturelle de la Baie de Somme, is also renowned for its diverse birdlife and natural habitats.


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