Natural monuments around Ney are primarily found within the Jura region, characterized by its diverse aquatic landscapes and forested areas. This area features a network of lakes, rivers, and waterfalls, shaped by natural geological processes. The terrain offers varied opportunities for exploration, from tranquil lakeside paths to more dynamic riverine environments. The region's natural features provide habitats for local flora and fauna.
Last updated: June 19, 2026
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Lacs de Maclu are two adjacent lakes in the western part of the French Jura, in the Jura department of Franche-Comté. They are located at an elevation of 779 m in a depression in the High Jura, in the region of the Five Lakes near Le Frasnois, about 12 km south of Champagnole. The Petit Maclu, located to the northeast, has an area of 5 hectares, a length of about 500 m, and a maximum width of about 120 m. Its greatest depth is 11 m. It lies entirely within the municipal territory of Le Frasnois.
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Easy, shaded path, perfect for cooling off in hot weather.
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The Serpentine, (first tributary of the Ain river whose source is located a little higher) forms a small lake near the ruins of a mill. It is from a cornice that this beautiful natural waterfall 15 meters high comes to life when the water level is sufficient.
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Very impressive, about 1 km walk from the parking lot nearby, swimming not possible and not recommended
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The river seems to weave through cracks in the bedrock before flowing into a crystal clear pool. Amazing geography.
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At the source of the Ain, you will find footbridges and interpretation panels to help you navigate and understand the site. A beautiful and relaxing place to spend time.
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From a small lake at the level of the mill, the river continues before cascading over a 15 meter high ledge. An amazing waterfall.
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The natural monuments around Ney are primarily found within the Jura region, characterized by diverse aquatic landscapes and forested areas. You'll discover a network of beautiful lakes like Petit Maclu Lake, scenic rivers such as the Ain Spring, and impressive waterfalls like Moulin du Saut Waterfall and Maillys Falls. The terrain offers varied opportunities for exploration, from tranquil lakeside paths to dynamic riverine environments, all set within lush forests.
Yes, several natural monuments around Ney are well-suited for families. Petit Maclu Lake is an excellent choice, offering an easy, shaded path perfect for cooling off. The Trail Along the Lakes of Haut-Jura is also family-friendly, providing an easy walk along three lakes with beautiful clear water and idyllic swimming spots. The Ain Spring also features footbridges and interpretation panels, making it an engaging and relaxing place for all ages.
The region around Ney showcases fascinating geological formations, particularly around its waterfalls and river sources. At Maillys Falls, the river dramatically weaves through cracks in the bedrock before cascading into a crystal-clear pool. Similarly, the Moulin du Saut Waterfall features the Serpentine river forming a small lake before plunging 15 meters from a cornice, revealing the area's unique rock structures.
The area around Ney offers a wide range of outdoor activities. You can enjoy hiking along the extensive trails, such as the Trail Along the Lakes of Haut-Jura. For cycling enthusiasts, there are numerous routes for mountain biking, road cycling, and gravel biking. You can explore various MTB Trails around Ney, scenic Road Cycling Routes around Ney, or adventurous Gravel biking routes around Ney, many of which pass by or near these natural wonders.
Visitors frequently praise the clear waters and idyllic swimming spots found at the lakes, especially along the Trail Along the Lakes of Haut-Jura. The shaded paths, particularly around Petit Maclu Lake, are appreciated for providing a refreshing experience, especially in warmer weather. The impressive amounts of water and the beauty of the waterfalls, like Ain Spring, are also highly valued for their scenic views and relaxing atmosphere.
Yes, the lake region around Ney offers excellent opportunities for swimming. The Trail Along the Lakes of Haut-Jura, which follows the Grand Lac Maclu and two other lakes, features beautiful clear water and idyllic swimming spots. Petit Maclu Lake, part of a string of interconnected lakes, also provides a refreshing environment for a dip.
The natural monuments around Ney, particularly the lake and wetland areas, provide an exceptional habitat for various animal species. The Natura 2000 area, which includes Petit Maclu Lake, is particularly rich in biodiversity. You can observe diverse aquatic vegetation, which supports a variety of local flora and fauna. Keep an eye out for different bird species, amphibians, and insects that thrive in these protected wetlands.
The natural monuments around Ney can be enjoyed in various seasons. The shaded paths around the lakes are particularly pleasant for cooling off in hot weather, suggesting summer is a great time for swimming and lakeside walks. However, the region's rivers and waterfalls, like Ain Spring, offer beautiful views in any season, making spring and autumn also ideal for hiking and enjoying the changing landscapes.
Yes, several natural monuments around Ney are considered easy to access. The path around Petit Maclu Lake is described as easy and shaded. Similarly, the Trail Along the Lakes of Haut-Jura is an easy forest trail accessible for various activity levels, even with luggage. The Ain Spring also offers an easy walk with footbridges, making it suitable for a relaxed visit.
Given the diverse terrain of lakes, rivers, and forested trails, it's advisable to wear comfortable walking shoes or hiking boots. Layers are recommended as temperatures can vary, especially if you're exploring shaded forest paths or open viewpoints. If you plan on swimming, bring appropriate swimwear. For visits during warmer months, sun protection like a hat and sunscreen is also a good idea.
Yes, the region offers opportunities for circular walks that incorporate its natural monuments. The Trail Along the Lakes of Haut-Jura provides an easy trail along multiple lakes, perfect for a scenic loop. While specific circular routes for each highlight aren't detailed, the network of trails around the lakes and rivers allows for creating your own circular paths to explore the natural beauty.


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