Top 7 Natural Monuments around Le Lac-D'Issarlès
Best natural monuments around Le Lac-D'Issarlès are characterized by a unique volcanic landscape in Ardèche, France. The region features a deep crater lake, ancient volcanoes, and significant geological formations. These natural landmarks offer diverse opportunities for outdoor activities and exploration. The area's distinct geology provides a varied natural environment for visitors.
Best natural monuments around Le Lac-D'Issarlès
- The most popular natural monuments is Mount Gerbier de Jonc, a summit of volcanic origin. It is known as the official source…
Last updated: July 5, 2026
Mount Gerbier de Jonc
Highlight • Summit
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Boutières Cross Pass
Highlight • Mountain Pass
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Lac d’Issarlès
Highlight • Lake
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Cirque des Boutières
Highlight (Segment) • Gorge
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Source de Loire
Highlight • River
Incidentally, each of the two sources also has its own restaurant 😃
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Tips from the Community
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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Very nicely located grotto, you can also go swimming below.
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The Cirque de Boutière is one of the most beautiful places in the Ardèche mountains. The circus offers an exceptional panorama of the Ardèche and the Alpine peaks.
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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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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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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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As you walk around this lake, be aware that it is extremely deep (138 m)! The lake was created by the escape of magma from a chamber beneath the lake.
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Frequently Asked Questions
What unique natural features can I explore in Le Lac-D'Issarlès?
Le Lac-D'Issarlès is characterized by its distinctive volcanic landscape. You can explore the deep crater lake of Lac d’Issarlès, ancient volcanic peaks like Mount Gerbier de Jonc and Suc de Cherchemuse, and significant geological formations that shape the region.
Are there good viewpoints to see the natural monuments in the region?
Yes, several natural monuments offer spectacular views. The Boutières Cross Pass is a notable viewing spot. From the summit of Suc de la Lauzière, you can observe Mount Gerbier de Jonc and the surrounding landscape. Climbing Mount Gerbier de Jonc also rewards you with panoramic vistas.
What activities can I do at Lac d'Issarlès?
Lac d’Issarlès offers a range of activities. You can enjoy supervised swimming during the summer season at its equipped beach, or engage in water sports like canoeing, paddleboarding, and pedal boating. Fishing is also popular, with the lake being a first-category body of water. A 3.6 km loop hike around the lake is easily accessible and shaded.
Are there hiking trails around the natural monuments in Le Lac-D'Issarlès?
Yes, the area offers various hiking opportunities. An easy 3.6 km loop trail circles Lac d’Issarlès. For a more challenging trek, a 10.4 km loop includes the neighboring volcano of Suc de Cherchemuse, offering panoramic views. You can find more detailed running trails, including a 3.9 km tour of Lac d'Issarlès, in the Running Trails around Le Lac-D'Issarlès guide.
Can I visit the source of the Loire River in this area?
Yes, the official source of the Loire River is located at Mount Gerbier de Jonc. This significant watershed point is a popular spot for visitors, and you can also find the 'true' source nearby at Source de Loire.
Are the natural monuments in Le Lac-D'Issarlès family-friendly?
Many natural monuments are suitable for families. Lac d’Issarlès is family-friendly with supervised swimming and an easy loop hike. The climb up Mount Gerbier de Jonc is also recommended with children, offering a fun, albeit narrow, path with some climbing sections. The Source de Loire is also considered family-friendly.
What is the difficulty level of exploring these natural monuments?
The difficulty varies. The 3.6 km loop around Lac d’Issarlès is easily accessible. Mount Gerbier de Jonc is a dormant volcano that is relatively easy to climb, though it involves a marked ascent with some climbing sections. Trails like the 10.4 km loop including Suc de Cherchemuse are more challenging, with a 460m altitude difference.
When is the best time to visit the natural monuments in Le Lac-D'Issarlès?
The summer months are ideal for water activities at Lac d’Issarlès, with pleasant swimming temperatures. For hiking and exploring volcanic peaks, spring and autumn offer comfortable temperatures. Even in summer, the higher altitudes of the peaks provide cooler air compared to lower regions.
What other outdoor activities can I do near these natural monuments?
Beyond hiking and water sports, the region around Le Lac-D'Issarlès is excellent for cycling and mountain biking. You can find various routes, including challenging loops around Lac d’Issarlès and towards Mount Gerbier de Jonc. Explore options in the Cycling around Le Lac-D'Issarlès and MTB Trails around Le Lac-D'Issarlès guides.
Are there any historical or cultural sites related to the natural monuments?
Yes, near Lac d’Issarlès, you can visit renovated troglodyte caves. These caves, dug into the explosion products of the maar crater, offer a glimpse into the historical layout and life of the period, connecting the region's human history with its unique geological past.
What do visitors enjoy most about the natural monuments in Le Lac-D'Issarlès?
Visitors particularly appreciate the stunning volcanic landscapes and the diverse opportunities for outdoor activities. The exceptionally clear and pure water of Lac d’Issarlès is a highlight for swimming and water sports. The panoramic views from peaks like Mount Gerbier de Jonc and the peaceful atmosphere combined with rich biodiversity are also highly valued.
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Extend your search for the best caves by checking out these guides of the top ones around Le Lac-D'Issarlès:
