Best attractions and places to see around Ostel include historical sites from the First World War and natural landscapes. This region features significant memorials and fortifications, reflecting its past as a strategic point. Visitors can explore a tranquil lake surrounded by forests and hills, offering opportunities for relaxation and outdoor activities. The area provides a blend of historical reflection and natural beauty for those interested in its unique heritage.
Last updated: May 11, 2026
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During the First World War, Cerny-en-Laonnois was a strategic point along the Chemin des Dames, a ridge fiercely contested by French and German troops. In September 1914, the village was taken by the Germans, who used it as a defensive post. They dug deep underground networks in the limestone, which served as shelters and munitions stores. In the spring of 1917, the area became the scene of the Nivelle Offensive, a large-scale French attack that resulted in heavy losses and eventually led to mutinies within the French army. Cerny-en-Laonnois was completely destroyed by artillery fire and fighting. After the war, the village was rebuilt a little further south. Today, the military cemeteries, the memorial chapel and the “Lanterne des Morts” bear witness to the immense human suffering that took place here.
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Ailette Lake is a haven of tranquility surrounded by greenery. Its calm and clear waters invite you to relax, whether for a stroll along the lake, a canoe trip or a picnic break. The preserved natural setting offers magnificent views of the surrounding wooded hills and the developed beaches.
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great hike on foot and by mountain bike. see hiking the mountains of Missy see you in 2025. To discover .
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The Ailles Village Monument was erected by the Touring Club de France in 1932, marking the location of the ancient village of Ailles, completely destroyed during the First World War and never rebuilt. You can still see some traces of the foundations of the houses in the fields.
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Lac d'Ailette is a beautiful lake located in the Aisne department of France, surrounded by forests and hills. It is a popular destination for hiking and mountain biking, as well as water sports and relaxation. The best time to visit the lake is from February to November, when the weather is mild and pleasant. You can also admire the colorful wildflowers in spring and summer, or the changing foliage in fall. Lake Ailette is a wonderful place to enjoy nature.
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These 19th-century forts had already lost their invincibility in the second half of the century and were more of a "belt of remnants" that no longer played a major strategic role. It was only when the Chemin des Dames became a deadlock as a front area that they became relevant again for a short time. Here you can feel this survived history well, the cellar-like bunkering on the mountain. Almost a small green overgrown labyrinth today....
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The fortress is well preserved and can also be visited with a guide. The area around it is beautiful, green, with benches and tables. The parking lot is large and free.
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'Ici fut Ailles' The monument is the only memory of the village of Ailles, completely destroyed 1917 by artillery in preparation of the Nivelle offensive.
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The region around Ostel offers a unique blend of historical sites from the First World War and serene natural landscapes. You can explore significant memorials, fortifications, and tranquil lakes surrounded by forests and hills.
A key historical site is Cerny-en-Laonnois, chapelle & Lanterne des Morts, which bears witness to the immense human suffering of the First World War. This location includes military cemeteries, a memorial chapel, and the “Lanterne des Morts.” Another significant site is the Ailles village monument, marking the location of a village completely destroyed during the war and never rebuilt.
Yes, the Fort of Condé is a well-preserved 19th-century fortress. Visitors can explore its cellar-like bunkering and the beautiful, green, overgrown labyrinth surrounding it. The area is also great for hiking and mountain biking.
Lake Ailette is a beautiful lake and a haven of tranquility. Its calm waters are perfect for relaxation, strolls along the shore, canoe trips, or picnics. The preserved natural setting offers magnificent views of wooded hills and developed beaches.
The best time to visit Lake Ailette is from February to November, when the weather is mild and pleasant. You can enjoy colorful wildflowers in spring and summer, or the changing foliage in fall.
Absolutely. Lake Ailette is ideal for families, offering opportunities for gentle strolls, picnics, and water activities. The grounds around the Fort of Condé also provide a beautiful green space for exploration.
You can find various cycling routes, including loops around Lake Ailette from places like Pargny-et-Filain or Vailly-sur-Aisne, ranging from moderate to difficult. There are also routes like the 'View of the Town Hall – Soissons Town Hall loop'. You can explore more options on the Cycling around Ostel guide.
Yes, there are several running loops, such as those starting from Vailly-sur-Aisne, Pargny-et-Filain, or Aizy-Jouy. These trails vary in difficulty. For more details, check the Running Trails around Ostel guide.
Mountain biking enthusiasts can find trails like the 'Nice climb😩 – ⚠️ Rolling stones... loop' or the 'Monthenault Church – Sluice Bridge loop', both starting from Pargny-et-Filain. Discover more options in the MTB Trails around Ostel guide.
Yes, the Fort of Condé has a large and free parking lot, making it convenient for visitors.
Visitors appreciate the well-preserved historical sites that offer a tangible connection to the past, especially the WWI history. The natural beauty of places like Lake Ailette is also highly valued for its tranquility and opportunities for outdoor activities. The blend of historical reflection and natural beauty is a common highlight.


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