Blue Flag Certified

Plage Du Grand Lac De Clairvaux

Bourgogne – Franche-Comté, France

Mediterranean Sea
46.5703°N, 5.7534°E

Clairvaux-les-Lacs is a lake town in the Jura's first plateau, centered in the region's lake district. The town has facilities for disabled visitors and serves as the canton's administrative center.

Certification Blue Flag 2026
Experience Sandy Beach Lifeguards
Practical Free Entry Parking

Plan Your Visit to Plage Du Grand Lac De Clairvaux

The key facts before you go

Blue Flag
Certified 2026
FEE annual certification
Water Quality
Blue Flag Standard
EU Bathing Water Directive
Best Season
April, May, June
Season: 01-07 – 31-08
Location
Clairvaux-les-Lacs
0.63 km from Clairvaux-les-Lacs
Facilities
Lifeguards · Parking
Free entry · Open beach
Family Score
N/A
Based on facilities & safety data

What is Plage Du Grand Lac De Clairvaux?

Plage Du Grand Lac De Clairvaux sits on the shores of a 64-hectare lake in the Jura's lake district, where the water reaches depths of 28 meters and the surrounding landscape holds secrets dating back 6,000 years. This Blue Flag inland beach serves as the recreational heart of Clairvaux-les-Lacs, a small canton capital that transforms each summer when its population quadruples with visiting swimmers, hikers, and history enthusiasts. The site carries particular archaeological significance—Neolithic dwelling remains discovered at the lake's edge make this one of Europe's most important prehistoric locations. With lifeguards on duty and facilities designed for visitors with disabilities, the beach offers supervised swimming in fresh mountain waters surrounded by the first plateau of the Jura mountains. Four campsites, hotels, and holiday rentals cluster nearby, making extended lakeside stays straightforward.

It sits alongside certified beaches along Bourgogne – Franche-Comté, part of a broader network of certified beaches throughout France certified annually by the Foundation for Environmental Education.

Sunrise, Sunset & Beach Direction

Plage Du Grand Lac De Clairvaux faces unknown toward Mediterranean Sea. The best light for photography and swimming is typically in April, May, June. The beach's orientation determines when it catches direct sun — plan your visit around this to make the most of your time there.

When to Go — Month by Month

Month Air Temp Crowds
Jan 2°C Low
Feb 5°C Low
Mar 7°C Low
Apr 10°C Low
May 13°C Low
Jun 18°C Low
Jul 20°C High
Aug 20°C High
Sep 16°C Low
Oct 12°C Low
Nov 7°C Low
Dec 4°C Low
When is the best time to visit Plage Du Grand Lac De Clairvaux?

The best time to visit Plage Du Grand Lac De Clairvaux is April, May, June. Air temperatures peak around 20.2°C in summer.

How crowded does Plage Du Grand Lac De Clairvaux get?

When does Plage Du Grand Lac De Clairvaux see its busiest periods? The summer months transform this small Jura commune dramatically—local population quadruples as visitors fill the four campsites, hotels, and rental accommodations clustered around the twin lakes.

July and August bring the highest concentrations of swimmers and sunbathers, coinciding with French school holidays and the warmest temperatures. July averages 20.2°C while August sits marginally cooler at 19.9°C—comfortable warmth rather than intense heat, which shapes the crowd character. Visitors here tend toward active recreation rather than passive sunbathing, with hiking and mountain biking trails drawing people away from the beach throughout the day.

September offers a notable shift, with temperatures dropping to around 16°C average and visitor numbers declining as families return home for the school year. The lake remains swimmable for those comfortable in cooler conditions, and the beach quiets considerably.

The archaeological significance of the site attracts a specific visitor segment interested in the Neolithic discoveries, though most summer crowds come primarily for swimming and camping. The presence of lifeguards during the season indicates organised supervision, suggesting the beach maintains defined operating hours with staffed periods.

Winter transforms the scene entirely, with January temperatures averaging just 2.2°C. The beach effectively closes for swimming, and the quadrupled summer population contracts back to local residents.

Is Plage Du Grand Lac De Clairvaux open year-round?

The beach itself is accessible year-round, though staffed facilities including lifeguards typically operate only during the official season (01-07 – 31-08). The Blue Flag is displayed during the certification period only.

Swimming and Beach Life at Plage Du Grand Lac De Clairvaux

Is Plage Du Grand Lac De Clairvaux safe to swim?

Plage Du Grand Lac De Clairvaux is Blue Flag certified, which requires meeting strict bathing water standards set by the EU Bathing Water Directive. Lifeguards are on duty during the official season.

What is the water temperature at Plage Du Grand Lac De Clairvaux?

Air temperature at Plage Du Grand Lac De Clairvaux reaches 20.2°C in July. Water temperatures vary by season — check local conditions before visiting. In winter (January), air temperatures average 2.2°C.

What is the beach like at Plage Du Grand Lac De Clairvaux?

What makes Plage Du Grand Lac De Clairvaux different from typical French beaches? The answer lies beneath your feet and across the water. This inland lake beach occupies a site of extraordinary historical weight, where archaeological excavations have uncovered multiple groups of Neolithic dwellings dating to approximately 4000 BC—discoveries that have positioned Clairvaux-les-Lacs as a singular prehistoric site within Europe.

The Grand Lac itself spans 64 hectares with a maximum depth of 28 meters, creating substantial swimming territory quite different from shallow recreational lakes. The water quality meets Blue Flag standards, indicating regular testing and environmental management that keeps these inland waters clean enough for international certification. A second, smaller lake of 21 hectares sits nearby, adding to the aquatic character of this Jura commune.

Lifeguards supervise the designated swimming area, providing the safety oversight that families and less confident swimmers appreciate. The beach includes specific facilities designed for disabled visitors, making lake access possible for those who might struggle at less accessible sites. This accessibility focus reflects modern French beach standards applied thoughtfully to an inland setting.

How does the lake environment shape the swimming experience here? Unlike coastal beaches where tides and currents demand constant attention, the Grand Lac offers still freshwater conditions. The 28-meter depth means the lake maintains cooler temperatures even during summer months when July air temperatures average around 20°C—warm enough for comfortable swimming but not the Mediterranean heat that draws crowds to southern France.

The setting places swimmers within view of the Jura's first plateau, with the Drouvenant valley visible from various points around the lake. A medieval tower—the sole surviving element of a castle that once commanded a promontory above this valley—punctuates the landscape, connecting casual beach visits to centuries of local history.

The beach functions as part of a larger tourist infrastructure that has developed around the twin lakes. Two private campsites and two municipal campsites provide accommodation ranging from basic tent pitches to more developed options. Hotels, gîtes, and furnished tourist rentals add to the visitor capacity, explaining how this small community can absorb four times its normal population during peak summer weeks.

Swimming conditions benefit from the Blue Flag certification requirements, which mandate not just water quality but also safety equipment, environmental information, and general site management. For inland waters, this certification carries particular significance—lake beaches face different challenges than coastal sites, including runoff management and ecosystem preservation in enclosed water bodies.

The Grand Lac's depth creates distinct water layers, with surface temperatures warming through summer while deeper waters remain cooler. This thermal structure supports the lake ecosystem while providing swimmers with refreshing conditions even on the warmest August days when air temperatures average just under 20°C.

Does Plage Du Grand Lac De Clairvaux have good facilities?

As a Blue Flag certified beach, Plage Du Grand Lac De Clairvaux meets the Foundation for Environmental Education's standards for facilities and services. Trained lifeguards are on duty during the season. Parking is available nearby.

Beyond Plage Du Grand Lac De Clairvaux

Clairvaux-les-Lacs rewards visitors who venture beyond the waterfront. The commune's archaeological heritage represents its most distinctive attraction—Neolithic dwelling sites discovered at the lake's edge date to approximately 4000 BC, making this one of Europe's significant prehistoric locations. These discoveries have shaped the area's identity beyond typical French lake resort status.

Clairvaux-les-Lacs rewards visitors who venture beyond the waterfront. The commune's archaeological heritage represents its most distinctive attraction—Neolithic dwelling sites discovered at the lake's edge date to approximately 4000 BC, making this one of Europe's significant prehistoric locations. These discoveries have shaped the area's identity beyond typical French lake resort status.

The architectural heritage includes a 12th-century church, modified over subsequent centuries but retaining its Romanesque origins. The medieval tower standing on a promontory above the Drouvenant valley represents the sole surviving element of a castle that once commanded this landscape. The viewpoint offers perspective across the valley that castle builders valued for defensive purposes.

The architectural heritage includes a 12th-century church, modified over subsequent centuries but retaining its Romanesque origins. The medieval tower standing on a promontory above the Drouvenant valley represents the sole surviving element of a castle that once commanded this landscape. The viewpoint offers perspective across the valley that castle builders valued for defensive purposes.

Hiking and mountain biking trails network through the surrounding Jura plateau, creating opportunities for active exploration away from the lakes. The terrain of this first Jura plateau provides varied walking conditions through landscapes shaped by both geology and centuries of human occupation.

Hiking and mountain biking trails network through the surrounding Jura plateau, creating opportunities for active exploration away from the lakes. The terrain of this first Jura plateau provides varied walking conditions through landscapes shaped by both geology and centuries of human occupation.

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Getting to Plage Du Grand Lac De Clairvaux

How do I get to Plage Du Grand Lac De Clairvaux by car?

Plage Du Grand Lac De Clairvaux is approximately 0.63 km from Clairvaux-les-Lacs. Follow local road signs to the beach. Check Google Maps or a local map for the most current directions.

What is the nearest airport to Plage Du Grand Lac De Clairvaux?

The nearest airport is Base Hydro-ULM de Montrevel-en-Bresse, approximately 53.08 km away. The nearest listed airport to Plage Du Grand Lac De Clairvaux is Base Hydro-ULM de Montrevel-en-Bresse, located approximately 53 kilometers from the beach. However, this facility serves ultralight and seaplane operations rather than commercial passenger flights. For practical air travel, visitors should consider larger regional airports serving the Bourgogne-Franche-Comté area. Geneva Airport in Switzerland and Lyon-Saint Exupéry Airport both provide international connections, though each requires onward ground transportation of considerable distance to reach Clairvaux-les-Lacs. Car rental from these airports offers the most flexible option for accessing this rural Jura location, as public transport connections to small lake communities remain limited.

Can I get to Plage Du Grand Lac De Clairvaux by public transport?

Bus services to rural Jura communities like Clairvaux-les-Lacs typically operate on limited schedules connecting smaller villages with regional centers. Local bus networks in Bourgogne-Franche-Comté serve primarily residents rather than tourists. Visitors without cars should verify current routes and timetables through regional transport authorities before planning journeys.

Practical Information

At the Beach
Entry Free — no charge to access the beach
Lifeguards On duty during official season
Disabled Access Contact local authority for details
Showers
Toilets
Official Season 01-07 – 31-08
Beach Type Sandy beach
Visiting Information
GPS Coordinates 46.5703°N, 5.7534°E
Blue Flag Operator Foundation for Environmental Education (FEE) — France

Plage Du Grand Lac De Clairvaux FAQ

Is Plage Du Grand Lac De Clairvaux worth visiting?

Plage Du Grand Lac De Clairvaux offers a distinctive combination of Blue Flag freshwater swimming and significant archaeological heritage. The 64-hectare lake with its 28-meter depth provides substantial swimming territory, while Neolithic dwelling sites dating to 4000 BC make the area uniquely important for European prehistory. Lifeguard supervision and disabled facilities add practical value. For visitors seeking alternatives to crowded coastal beaches, this Jura lake delivers clean water, historical depth, and access to hiking and biking trails across the first plateau.

How do I get to Plage Du Grand Lac De Clairvaux?

Reaching Clairvaux-les-Lacs requires planning due to its rural Jura location. The nearest practical approach for most visitors involves flying into Geneva or Lyon airports, then renting a car for the drive to this lake district commune. Rail travelers can reach regional stations like Lons-le-Saunier, but onward connections to the village remain limited. Bus services operate primarily for local residents. A car provides the most flexible access to both the beach and surrounding attractions including hiking trails and archaeological sites.

What is the best time of year to visit Plage Du Grand Lac De Clairvaux?

July and August provide the warmest conditions for swimming, with average air temperatures around 20°C and lifeguard supervision in place. This peak period sees the commune's population quadruple as visitors fill campsites and accommodations. September offers quieter conditions with temperatures averaging 16°C—still swimmable for those comfortable in cooler water. January temperatures average just 2.2°C, making winter visits about landscape and archaeology rather than swimming. Late June and early September balance reasonable swimming weather against reduced crowds.

What facilities are there at Plage Du Grand Lac De Clairvaux?

The beach provides lifeguard supervision during the swimming season and includes facilities specifically designed for disabled visitors, making lake access more inclusive. Blue Flag certification indicates the presence of required safety equipment, environmental information, and maintained water quality standards. The surrounding commune supports visitors with two private campsites, two municipal campsites, hotels, gîtes, and furnished tourist rentals. This infrastructure explains how the small community accommodates summer crowds that quadruple its normal population.

Is Plage Du Grand Lac De Clairvaux suitable for families?

Families benefit from several features at this inland lake beach. Lifeguard supervision provides safety oversight for children swimming in the designated area. Facilities designed for disabled visitors indicate broader accessibility considerations. The freshwater lake environment lacks tides and strong currents common at coastal beaches, creating calmer conditions for younger swimmers. Four nearby campsites offer family-friendly accommodation, while hiking and biking trails provide activities beyond the beach. The archaeological heritage adds educational interest for children curious about prehistoric life.

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Edited by Arjun Nair, Coastal Research Editor | Updated June 2026