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Auvergne Rhône Alpes

Nantua

Top 10 Natural Monuments around Nantua

Best natural monuments around Nantua are situated in the Ain department, offering diverse natural landscapes. The region is characterized by glacial lakes nestled between imposing limestone cliffs and dramatic river gorges. These features provide opportunities for outdoor activities and offer scenic beauty. The area is part of the Haut-Bugey region, known for its varied topography.

Best natural monuments around Nantua

  • The most popular natural monuments is Lake Nantua, a lake that is sometimes sapphire and sometimes emerald in color.…

Last updated: July 2, 2026

Lake Nantua

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This glacial lake backed by limestone cliffs is sometimes sapphire and sometimes emerald in color - Alexandre Dumas wrote in his book Impression de voyage in 1834: “This pretty little …

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Memorial dedicated to the memory of the 700 dead of the maquis of Ain and Haut Jura
This work, due to the initiative of Colonel ROMAN PETIT, chief of the …

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Cerdon Caves

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The Cerdon Caves are located in the French communes of Cerdon and Labalme, in the department of Ain in the Auvergne-Rhône-Alpes region. They house an archaeological site from the Magdalenian …

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Lake Genin

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Nicknamed "the little Canada of Haut-Bugey", this mountain lake, with its alpine fir trees and turquoise waters, is an excellent mid-course break.

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Valserine Gorges

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The Pierres Bridge spans the gorges of the Valserine river here.

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These fascinating elements are in fact devices that allow fish to cross man-made obstacles such as dams or weirs for migrating fish.

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La Roche Fauconnière

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The promontory offers a sublime panorama of the Roche Fauconnière cirque. The site has been classified as a “sensitive natural area” since 1936. The 150 meter high cliff dominates the Semine valley and faces the Orvaz valley.

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Cascade de la Pisse Vache

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Starting from the hamlet of Bombois on the left bank of the Ain valley, a family walk in the forest leads to this waterfall with its funny name. Find "8 …

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Valserine Valley

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The river has regained its tranquility here, its course is more peaceful. It is the colors of the water that change. This phenomenon is just as fascinating as the rapids seen previously.

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Combe Waterfall

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Demanding ascent for beginners, difficult passage for a few meters (cable handrail)

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Popular around Nantua

Grande Traversée du Jura en VTT — The Great Crossing of the Jura by MTB

Gravel in Ain — sporty loops between water and mountain

Gems of the Ain — MTB routes amidst natural beauty

Grande Traversée du Jura - the gravel adventure

GRP Grand Tour de la Valserine

Cycling in the Ain – nature, heritage and the great outdoors

Secrets of the Ain – 10 wonderful watery hikes

Gravel Tours in the Jura Mountains

The thousand faces of the Jura Mountains – Grande Traversée du Jura on foot

Wine, cheese and cycling – day trips in the French Jura Mountains

Other adventures around Nantua

Grande Traversée du Jura en VTT — The Great Crossing of the Jura by MTB

Mountain Biking Collection by

Katie-Jane L'Herpiniere

Tips from the Community

Lio
May 7, 2026, Cascade de la Combe

Demanding ascent for beginners, difficult passage for a few meters (cable handrail)

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Lucie
August 27, 2025, Lac de Nantua

Beautiful, simple, easy walk; lots of traffic noise on the "road" section, a bit of a shame, but the color of the water is magical

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View from the bridge.

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LJN74
August 1, 2025, Grottes du Cerdon

We tried the Arc'Aïk Battle for our fun day: it's awesome! Definitely worth doing! The refreshments offered by the organizers were a big plus (the EcoCUPs are very beautiful!).

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DHW
July 22, 2025, Grottes du Cerdon

Dress warmly. It was 4°C.

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Magnificent viewpoint, not to be missed under any circumstances.

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The river has regained its tranquility here, its course is more peaceful. It is the colors of the water that change. This phenomenon is just as fascinating as the rapids seen previously.

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unvara
April 14, 2024, Lac Genin

Viewpoint on Lake Genin.

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Frequently Asked Questions

What are some of the best natural monuments for water activities around Nantua?

The region offers several excellent spots for water activities. Lake Nantua is ideal for swimming, sailing, canoeing, paddleboarding, and pedal boating. The Gorges de l'Ain also provide opportunities for various river activities. For a more tranquil experience, Lake Genin is perfect for relaxation by the water.

Are there family-friendly natural monuments to visit near Nantua?

Yes, several natural monuments are well-suited for families. Lake Genin, often called 'the little Canada of Haut-Bugey,' is a popular family destination with its serene mountain environment. The Cerdon Caves offer an engaging historical and natural experience for all ages. Additionally, the area around Lake Nantua provides easy walking paths and water activities suitable for families.

What kind of hiking opportunities are available near Nantua's natural monuments?

Nantua and its surroundings are excellent for hiking. You can find trails around Lake Nantua, offering panoramic views from the surrounding cliffs. The Gorges de l'Ain and Valserine Gorges feature trails with elevated viewpoints over the rivers and unique geological formations. The Plateau de Retord also provides extensive hiking routes with stunning vistas, including glimpses of Mont Blanc on clear days. For more specific routes, explore the hiking guide for Nantua.

When is the best time to visit the natural monuments around Nantua?

The natural monuments around Nantua offer diverse experiences throughout the year. Summer is ideal for water activities at Lake Nantua and hiking. In winter, Lake Genin transforms into a venue for ice skating and even ice diving, offering unique seasonal activities. Spring and autumn provide pleasant temperatures for hiking and cycling, with beautiful seasonal colors.

Are there any natural monuments with historical significance in the Nantua region?

While primarily natural, some sites also hold historical interest. The Cerdon Caves are a natural monument with significant historical context. Additionally, the Memorial to the Maquis of Ain and Haut-Jura, though a man-made monument, is situated within a natural setting and commemorates an important historical period.

What unique natural features can I expect to see in the Nantua area?

The Nantua area is rich in diverse natural features. You'll find stunning glacial lakes like Lake Nantua, nestled between imposing limestone cliffs. Dramatic river gorges, such as the Gorges de l'Ain and Valserine Gorges, showcase impressive karst formations. The region also features picturesque waterfalls like Cascade de la Pisse Vache and Cascade de la Fouge, along with expansive plateaus like Plateau de Retord offering wide-open spaces and forests.

Can I go cycling or mountain biking near the natural monuments?

Absolutely. The Plateau de Retord is highly recommended for cycling and mountain biking enthusiasts, offering expansive trails and scenic views. You can also find cycling paths around Lake Nantua. For specific routes and difficulty levels, check out the gravel biking guide for Nantua.

Are there any viewpoints offering panoramic scenery of the natural monuments?

Yes, many natural monuments in the region offer spectacular viewpoints. Hiking trails ascending the cliffs around Lake Nantua provide breathtaking panoramic vistas. La Roche Fauconnière offers a sublime panorama of its cirque and the Semine valley. The Gorges de l'Ain and Valserine Gorges also feature elevated spots for impressive views of the river landscapes.

What are some lesser-known or 'hidden' natural gems in the Nantua region?

While popular, Lake Genin is often described as a tranquil, somewhat hidden mountain lake, offering a peaceful escape. The Valserine Valley, with its forest and river, provides a serene natural environment that can feel like a hidden gem for those seeking quiet exploration away from more crowded spots.

What do visitors enjoy most about the natural monuments around Nantua?

Visitors frequently praise the stunning natural beauty, particularly the mesmerizing colors of Lake Nantua, which Alexandre Dumas famously described as 'a pretty little sapphire blue lake set like a jewel.' The tranquility of places like Lake Genin and the dramatic landscapes of the gorges are also highly appreciated. Many enjoy the diverse outdoor activities available, from hiking and cycling to various water sports.

Are there opportunities for running or trail running near these natural monuments?

Yes, the natural surroundings of Nantua are great for running. You can find routes around Lake Genin and Lake Nantua, as well as trails through the Valserine area. For detailed running routes and their difficulty, refer to the running trails guide for Nantua.

Are there any natural monuments that are particularly good for birdwatching or wildlife spotting?

The protected status of Lake Nantua as a 'Sensitive Natural Area' indicates its ecological importance, making it a good spot for observing local flora and fauna. The forested areas around Lake Genin and the Plateau de Retord also provide habitats for various wildlife, offering opportunities for nature observation.

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