Best lakes around Lens are found within the broader Nord-Pas-de-Calais region, now part of Hauts-de-France. While Lens itself is known for its mining history, the surrounding areas offer various aquatic environments for recreation. These bodies of water primarily include smaller lakes, reservoirs, and communal ponds. The region provides opportunities for nature observation and outdoor activities.
Last updated: June 30, 2026
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The Duck Farm was formerly part of the large park of the Princes of Ligne's castle; it was here that ducks were hunted to grace the tables of the lords of the manor, hence its name. Nowadays, it is a haven for amphibians, dragonflies, and other insects.
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Beautiful building in a quiet forest. Benches provided to enjoy a moment
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The old quarries of the Dendre and Congo are a historic site of exploitation of blue stone, or "small granite", from the 18th century until 1951. Today submerged, they form a vast body of water 4.5 hectares. The site is managed by the Otaries diving club and is home to rich biodiversity with more than 120 species of birds observed. The quarries, integrated into a natural setting, are a popular place for scuba diving and hiking.
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Very nice bike path, apart from the concrete slabs.
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View over the Grand Large to Mons.
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Aquatic and other recreation around Mons.
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Here, the eastern Dender has just begun its journey and is therefore quite narrow. From Lens onwards, it noticeably widens; in Ath, it joins the western Dender, and in Dendermonde, it finally flows into the Scheldt as a substantial river.
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Near Lens, you'll primarily find smaller lakes, reservoirs, and communal ponds rather than expansive natural bodies of water. These include artificial lakes like The Grand Large of Mons, historical sites where former quarries are now submerged, such as the Ancient quarries of the Dendre and the Congo, and natural areas like Beloeil small pond. These offer diverse environments for recreation and nature appreciation.
Yes, the Ancient quarries of the Dendre and the Congo are a significant historical site. These former blue stone quarries, active until 1951, are now submerged, forming a vast body of water spanning 4.5 hectares. They are integrated into a natural setting and are popular for scuba diving and hiking.
Several spots are great for families. The Grand Large of Mons is a popular destination with good cycle paths. Beloeil small pond is a natural area that was formerly part of the Beloeil Castle park, offering a tranquil setting. Additionally, the area around Beloeil Castle itself is family-friendly, with dogs allowed in the park.
While many smaller ponds and nature reserves like Lac de la Brèche prohibit swimming, Lac de la Corne, located nearby, does allow swimming. For more extensive swimming opportunities, Lac du Der-Chantecoq, though further afield, offers six equipped beaches with lifeguards during summer months.
The region offers several spots for nature lovers. Beloeil small pond is a haven for amphibians, dragonflies, and other insects. The Ancient quarries of the Dendre and the Congo are home to rich biodiversity with over 120 species of birds observed. Further north, Lake Arques and Lake Saint-Omer near Calais are noted for birdwatching, hosting species like herons, ducks, and swans.
Yes, The Grand Large of Mons is known for its good cycle paths along the water, making it a popular destination for relaxed cycling. For more cycling routes in the broader area, you can explore the Cycling around Lens guide, which includes routes like the 'RAVeL Along the Dender River'.
You can find hiking opportunities around several lakes. The Ancient quarries of the Dendre and the Congo are a popular spot for hiking. The area around The Round House also features a great forest with many paths. For a wider selection of trails, consult the Hiking around Lens guide, which details routes like 'Balade d'Encre, Lens'.
Yes, for a longer trip, two significant lakes in France stand out. Lac du Der-Chantecoq, the largest artificial lake in France, offers extensive walking and cycling paths, water sports, and is a national protected wildlife area. Lac des Settons in the Morvan Regional Natural Park is another popular destination for water sports, fishing, and exploring rich flora and fauna.
Visitors appreciate the tranquility and natural beauty of these areas. Many enjoy the well-maintained cycle paths, especially around The Grand Large of Mons. The historical aspect of sites like the Ancient quarries of the Dendre and the Congo, combined with their rich biodiversity, is also a significant draw. The peaceful forest settings, such as near The Round House, are also highly valued.
Yes, dogs are generally welcome in many outdoor areas. Specifically, dogs are allowed in the park surrounding Beloeil Castle, which is adjacent to the Beloeil small pond. It's always a good idea to check local regulations for specific trails or nature reserves regarding pets.
The Ancient quarries of the Dendre and the Congo are a unique site. They are particularly popular for scuba diving, managed by the Otaries diving club. Additionally, the natural setting around the submerged quarries offers excellent opportunities for hiking and observing the rich biodiversity, including over 120 species of birds.
Yes, The Grand Large of Mons features a marina, making it a hub for boating activities. While smaller lakes near Lens might not have extensive boating facilities, larger destinations like Lac du Der-Chantecoq (further away) also offer multiple marinas for sailing and various water sports.


Still not found your perfect lake around Lens? Check out the guides of these regions to see even more beautiful places.