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France
Auvergne Rhône Alpes
Largentière

Le Lac-D'Issarlès

Attractions and Places To See around Le Lac-D'Issarlès - Top 20

Best attractions and places to see around Le Lac-D'Issarlès include a unique volcanic crater lake and surrounding natural features. This region, part of the Monts d'Ardèche Regional Nature Park, is characterized by its volcanic past, offering diverse landscapes of ancient volcanoes and basaltic flows. Visitors can explore geological curiosities, historical sites, and engage in various outdoor activities.

Best attractions and places to see around Le Lac-D'Issarlès

  • The most popular attractions is Mount Gerbier de Jonc, a summit of volcanic origin. It is the official source of the Loire river and offers panoramic views after a climb.
  • Another must-see spot is Boutières Cross Pass, a mountain pass offering spectacular viewing spots. It is also a significant watershed point.
  • Visitors also love Lac d’Issarlès, a deep volcanic crater lake. This lake was formed by the escape of magma and is popular for swimming and hiking.
  • Le Lac-D'Issarlès is known for its volcanic landscapes, historical sites, and water activities. The region offers a variety of attractions to see and explore, from geological formations to cultural landmarks.
  • The attractions around Le Lac-D'Issarlès are appreciated by the komoot community, with over 110 upvotes and 60 photos shared by visitors.

Last updated: May 10, 2026

Mount Gerbier de Jonc

Highlight • Summit

Like many peaks in this region, Mont Gerbier-de-Jonc is of volcanic origin. There is a one-way climbing ascent and a descent. This is also necessary because, when the weather is good, there is a lot going on here on weekends or during the holidays and "climbers" of all ages make their way to the summit.
At the height of the mountain lies an important watershed: the official source of the Loire is located here, and not far away rises the Ardèche, which winds its way through the department of the same name towards the Rhône.

Even if there is a lot going on here, the climb is worth it and is also recommended with children.

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Boutières Cross Pass

Highlight • Mountain Pass

The Col de la Croix de Boutières from Saint-Martin-de-Valamas is 27.1km long with a total drop of 1024m. The average gradient is 3.5% with maximum gradients of 9%.

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Lac d’Issarlès

Highlight • Lake

Beautiful mountain lake in a region with many marked hiking trails. There is a beach on the north shore where swimming is monitored in July/August. Due to the altitude the water is always a bit fresh...

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Mazan-l'Abbaye

Highlight • Settlement

The artist Felice Varini has created an interesting work on the ruins of the Mazan Abbey, built in the 12th century. It is part of an artistic journey around the watershed line which crosses the Ardèche. This one is called “A circle and a thousand fragments” where the artist chose to work with gold leaf, mineral on mineral.

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View of Mont Gerbier de Jonc

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A volcano in the shape of a needle of cooled lava, Le Gerbier de Jonc, placed like a cone on the Ardèche plateau, is with the Gouléïou, located in the Cirque des Boutières, the archetype of the phonolitic juices of this territory. From the Gerbier de Jonc and the surrounding phonolite reliefs, rises the longest river in France: the Loire. Trails of varying difficulty and length lead to the summit.

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Popular around Le Lac-D'Issarlès

GR 3 between Puy-en-Velay and Gerbier de Jonc – The Loire from ocean to the source

Hiking around Le Lac-D'Issarlès

Road Cycling Routes around Le Lac-D'Issarlès

MTB Trails around Le Lac-D'Issarlès

Running Trails around Le Lac-D'Issarlès

Cycling around Le Lac-D'Issarlès

Other adventures around Le Lac-D'Issarlès

GR 3 between Puy-en-Velay and Gerbier de Jonc – The Loire from ocean to the source

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Tips from the Community

Frédéric Gondrand
September 1, 2024, Col de la croix de Boutières

A pass at an altitude of over 1500 m. It is the highest in Ardèche.

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Mont Gerbier-de-Jonc is one of the highest peaks of the Monts d'Ardèche in the south-eastern Massif Central. The mountain itself is a striking, extinct volcanic cone with a good view over the Massif Central. The ascent and descent require some fitness and good footwear. There are a few short climbing rocks that cannot be avoided. But the view is worth it.

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Petra
September 13, 2023, Lac d’Issarlès

Very nicely located grotto, you can also go swimming below.

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A volcano in the shape of a needle of cooled lava, Le Gerbier de Jonc, placed like a cone on the Ardèche plateau, is with the Gouléïou, located in the Cirque des Boutières, the archetype of the phonolitic juices of this territory. From the Gerbier de Jonc and the surrounding phonolite reliefs, rises the longest river in France: the Loire. Trails of varying difficulty and length lead to the summit.

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Stroll around the lake on Sunday July 23, 2023. Very pleasant because it is largely shaded. Provide credit card (no possibility to pay in cash) for paid parking from 01/06 to 30/09, package 3€. Lots of people on the beaches and around.

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seryam07
July 19, 2023, Mazan-l'Abbaye

Work "A circle and a thousand fragments" by Felice Varini. https://www.ardeche-guide.com/lieux-de-visites/sites-historical-monuments/oeuvre-un-cercle-et-mille-fragments-de-felice-varini-4827079

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Crater lake, 1,000 meters above sea level with a very pleasant beach for swimming. Very calm. Good food options around and public restrooms.

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Paul_C
February 23, 2023, Lac d’Issarlès

While jogging around this lake, be aware that it is extremely deep (138 m)! The lake was created by the escape of magma from a chamber below the lake.

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Frequently Asked Questions

What are the main natural features to explore around Le Lac-D'Issarlès?

The region is dominated by its volcanic past. The most prominent feature is Lac d’Issarlès, a deep volcanic crater lake formed by magma escape. You can also explore the ancient volcano Mount Gerbier de Jonc, which is the source of the Loire river and offers panoramic views. The area also features visible basaltic flows, other volcanic peaks like Suc de Cherchemuse, and the wild Loire River with its picturesque waterfalls and basalt cliffs.

Are there any historical or cultural sites near Le Lac-D'Issarlès?

Yes, the village itself has an 11th-century Romanesque-Gothic church with a porch and two towers. Near Lac d’Issarlès, you can find renovated troglodyte dwellings, which are caves dug into the rock, offering a glimpse into the region's past. Further afield, Mazan-l'Abbaye features the ruins of a 12th-century abbey with a unique art installation.

What kind of water activities can I do at Lac d'Issarlès?

The clear waters of Lac d’Issarlès are perfect for various water sports. You can enjoy supervised swimming during July and August, paddle boating, canoeing, windsurfing, and stand-up paddleboarding. Equipment rental is available on-site.

Are there good hiking opportunities around Le Lac-D'Issarlès?

Absolutely. Numerous marked trails cater to all levels. A pleasant footpath circles Lac d’Issarlès, taking about an hour to complete. More challenging routes lead to the summit of Suc de Cherchemuse or explore the wider Montagne d'Ardèche, offering diverse landscapes. For more options, check out the dedicated hiking guide: Hiking around Le Lac-D'Issarlès.

Can I go fishing in Lac d'Issarlès?

Yes, Lac d’Issarlès is a popular spot for fishing. It's teeming with brown and rainbow trout, Arctic char, salmon, minnows, gudgeon, and whitefish. Remember that a departmental fishing license is required, and certain baits are prohibited.

What are the best viewpoints in the area?

For stunning panoramic views, climb Mount Gerbier de Jonc. The Boutières Cross Pass also offers spectacular viewing spots. Additionally, the Col du Gage belvedere, located southeast of the village, provides a comprehensive view of the entire Lac d’Issarlès.

Are there family-friendly activities or trails?

Yes, Lac d’Issarlès is considered family-friendly, with supervised swimming in summer and a pleasant footpath around the lake. The climb up Mount Gerbier de Jonc is also recommended with children, as it involves a fun, narrow path with some climbing sections that are very safe.

What do visitors enjoy most about the attractions here?

Visitors particularly enjoy the unique volcanic landscapes and the opportunity to climb peaks like Mount Gerbier de Jonc for its mighty views. The tranquility and beauty of Lac d’Issarlès, especially for swimming and walking, are also highly appreciated. Many find the combination of natural beauty and accessible activities very rewarding.

Can I go cycling or mountain biking around Le Lac-D'Issarlès?

Yes, the region offers numerous marked trails suitable for mountain biking. There are also several cycling routes available, including challenging loops around Mount Gerbier de Jonc and Lac d’Issarlès. You can find more details in the cycling guide: Cycling around Le Lac-D'Issarlès.

What is the best time to visit Le Lac-D'Issarlès?

The summer months (July and August) are ideal for water activities at Lac d’Issarlès, with supervised swimming available. Spring and autumn offer pleasant temperatures for hiking and exploring the volcanic landscapes, with fewer crowds. Even in good weather during weekends or holidays, popular spots like Mount Gerbier de Jonc can be busy, but the climb is always worthwhile.

Are there any unique geological experiences in the area?

Le Lac-D'Issarlès is part of the Monts d'Ardèche Regional Nature Park, known for its volcanic heritage. You can explore the maar crater of Lac d’Issarlès, visible basaltic flows, and strombolian volcanoes. An 'Explorer Pass' is available for those interested in discovering seven young volcanoes of Ardèche, including Lac d’Issarlès, by collecting punches at each site to earn a badge.

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