Best lakes around Four offer diverse natural landscapes for outdoor activities. The region features various lakes and ponds, providing settings for relaxation and exploration. These water bodies are often surrounded by natural areas, including forests and trails. Four is a destination where visitors can find opportunities for walks, hikes, and enjoying natural scenery.
Last updated: June 24, 2026
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with a view of the castle
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Lovely view of the pond. A little cool spot when it's hot.
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The lake of Saint Quentin Fallavier is of an exceptional nature, a very pleasant place.
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beautiful ride around the lake by mountain bike
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Rosière Pond NATURAL HERITAGE Rosière Pond BACK TO THE LIST Rosière Pond© Martial-Couderette The Rosière pond is located to the north-east of the town of Bourgoin-Jallieu on the edge of the town of Ruy-Montceau and offers an ideal relaxing setting. The association “Les Amis de Rosière et de la Nature” manages the pond made available by the city. The Rosière pond, fed by the Loudon stream, was built in the 18th century to power a hemp mill (the current restaurant). This pond was the property of the GENIN family for a long time before being bought by the town of Bourgoin-Jallieu in 1978. Since then, the town of Bourgoin-Jallieu has done everything possible to make this site a protected natural place, walks and hikes and a fishing spot. Many hiking trails start from the pond. Source: Isère Tourism
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The Montjoux area is home to remarkable fauna and flora to preserve and discover: purple herons, gray herons, grebes, kingfishers, marsh ferns...
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left a little too late to see the sunrise on the heights of Plan Bourgoin
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Yes, several lakes in the Four region are ideal for families. Lake Saint-Quentin-Fallavier offers swimming and relaxation areas. Étang de la Rosière is a protected natural site with easy walks, and the Washhouse, Pond and Oak Forest provides pleasant passages through nature with panoramic views.
The lakes around Four are set amidst diverse natural landscapes. You can find forested areas, such as around the Washhouse, Pond and Oak Forest, and protected natural sites like Étang de la Rosière. The Montjoux Pond Sensitive Natural Area is particularly known for its remarkable fauna and flora, including various bird species and marsh ferns.
Yes, Lake Saint-Quentin-Fallavier is a popular spot for swimming, offering ample parking and designated relaxation areas for visitors.
The region around Four's lakes offers a variety of outdoor activities. You can enjoy walks and hikes around Étang de la Rosière, or mountain biking routes around Lake Saint-Quentin-Fallavier. For more extensive cycling, explore the MTB Trails around Four, Road Cycling Routes around Four, or Gravel biking around Four.
Yes, many hiking trails start directly from the ponds, particularly around Étang de la Rosière. The Washhouse, Pond and Oak Forest also features pleasant passages through the undergrowth, perfect for walks.
Visitors appreciate the relaxing settings and diverse natural landscapes. Many enjoy the opportunities for walks, hikes, and mountain biking. The presence of protected natural sites and areas with remarkable fauna and flora, like the Montjoux Pond Sensitive Natural Area, is also highly valued.
Yes, Lake Saint-Quentin-Fallavier is known for offering ample parking spaces, making it convenient for visitors.
Yes, Étang de la Rosière is a designated fishing spot, in addition to offering opportunities for walks and hikes.
The Washhouse, Pond and Oak Forest offers a small bump with a panoramic view, providing scenic vistas over the surrounding area.
The Montjoux Pond Sensitive Natural Area is home to remarkable fauna, including purple herons, gray herons, grebes, and kingfishers. The Washhouse, Pond and Oak Forest also offers the chance to hear and observe various omnipresent fauna.
Yes, Lake Saint-Quentin-Fallavier is popular for mountain biking, with routes available around the water. For more extensive options, you can explore the MTB Trails around Four guide, which includes routes like the Saint Bonnet Pond loop.


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