Caves around Saint-Romans are primarily found in the Drôme department, offering a diverse range of underground experiences within the Vercors Regional Natural Park. This region is characterized by its dramatic limestone landscapes, carved by ancient rivers and geological processes. Visitors can explore natural cave formations, underground rivers, and historical sites. The area provides opportunities for both accessible public visits and more adventurous caving excursions.
Last updated: June 22, 2026
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the waterfall dominates the Bournillon cave
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The Moulin-Marquis waterfall or Bournillon waterfall is a French waterfall about 400 meters high. It is located in Choranche in Isère, in the Bournillon cirque, downstream from the Bourne gorges.
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Nice little place, the climb up to here is still manageable. Nice views nonetheless.
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You have to go take a look before or after visiting the Choranche cave. It's not far at all and the trail is accessible even to children. The cave is easily visible (staying outside) without specific equipment. You can then go see the waterfall.
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This underground landscape once invaded by water is now punctuated by rock sculptures with natural pigments. Through objects found in this millennial cave, we relive the daily life of Homo Sapiens. During the visit, the guide illustrates the formation of this cavity and its occupation during the last ice age. More info here: https://www.visites-nature-vercors.com/fr/grotte-de-thais/decouvrir/
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Easy climb, ideal for the kids, to a majestic cave!
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An underground world in the heart of a picturesque village. https://www.visites-nature-vercors.com/fr/grotte-de-thais/decouvrir/
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Arrived in Choranche from Presle, take advantage of this stopover to refill your water. You can easily get supplies in the village or by going for a hike to the Gournier waterfall where you will also find a shop near the entrance to the Gournier cave. Choranche holds in its heart the waterfall and the cave of Gournier. Real unusual, the cave of Gournier contains an underground lake that you will have to cross to start your caving excursion. Another portion of the cave is open to guided tours. For more information on the site and the opening to visits of the cave follow these links: Caving, The cave of Gournier | Isère Tourisme (isere-tourisme.com) the Grotte de Choranche, an exceptional natural place in the heart of Vercors! (visite-nature-vercors.com)
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The region around Saint-Romans, particularly within the Vercors Regional Natural Park, offers a diverse range of underground experiences. You can explore natural cave formations carved by ancient rivers, such as Gournier Cave with its underground lake, or the impressive Bournillon Cave. There are also historical sites like the Thaïs Cave, which provides insights into prehistoric human activity.
Yes, several caves are suitable for families. Gournier Cave is easily visible from the outside and accessible even for children, often visited in conjunction with the nearby Choranche gorge. The Thaïs Cave is also considered family-friendly, offering an engaging journey through an underground world with a guide illustrating its formation and prehistoric occupation.
Beyond the natural formations, the region boasts significant historical cave sites. The Prehistoric Cave of Thaïs near Saint-Nazaire-en-Royans is known for its archaeological importance, showcasing objects from Homo Sapiens and rock sculptures. Further afield, the unique **Abbaye de Saint-Roman** near Beaucaire is a troglodytic monastery carved into limestone, offering a rare glimpse into rock-cut monastic architecture and a necropolis with hundreds of tombs. You can learn more about its history at Wikipedia.
The caves in this region are renowned for their impressive natural features. For instance, Gournier Cave features a notable underground lake. The area is also characterized by dramatic limestone landscapes, underground rivers, and spectacular waterfalls like the Moulin-Marquis Waterfall, which stands approximately 400 meters high and dominates the entrance to the Bournillon cave.
Many caves in the Saint-Romans area, especially those set up for public visitation, are accessible year-round. However, visiting during the spring or autumn months often provides pleasant weather for exploring the surrounding natural park and trails, enhancing the overall experience. Some sites may have specific opening hours or seasonal closures, so it's always best to check in advance.
Yes, guided tours are a common way to explore the caves. Gournier Cave offers guided tours, and a portion of the Choranche cave system is also open for guided visits. The Thaïs Cave also provides guided experiences where experts illustrate the cave's formation and history.
The Vercors Regional Natural Park, where many of these caves are located, offers numerous outdoor activities. You can find various running trails, road cycling routes, and general cycling tours. The area around Choranche, for example, is known for picturesque landscapes with manageable climbs and nice views, perfect for hiking.
Visitors frequently appreciate the unique blend of natural beauty and historical significance. The underground lakes and impressive rock formations, like those in Gournier Cave, are often highlighted. The opportunity for caving excursions in systems like Choranche, combined with the serene and picturesque surroundings, also receives high praise. The historical insights offered by sites like the Thaïs Cave add another layer of appeal.
While popular sites like Gournier and Choranche attract many visitors, exploring some of the lesser-known natural features can offer a more tranquil experience. The Moulin Marquis Spring, which gushes from a small cave-like crevice, offers a pleasant atmosphere and is often less frequented than the larger show caves. Exploring the trails around the Moulin-Marquis Waterfall and Bournillon Cave can also provide a sense of solitude amidst impressive natural scenery.
Caves maintain a consistently cool temperature year-round, typically around 10-12°C (50-54°F), regardless of the outside weather. It's advisable to wear layers, including a light jacket or sweater, even in summer. Comfortable, closed-toe shoes with good grip are essential, as cave floors can be damp and uneven. For more adventurous caving excursions, specialized gear may be required, which is usually provided or specified by tour operators.
While some larger towns in the region are served by public transport, direct access to many of the specific cave sites can be limited. It is often recommended to have a car for flexibility, especially when visiting sites within the Vercors Regional Natural Park. However, some popular sites may have shuttle services or be accessible via local bus routes from nearby towns. Always check the specific cave's official website for the most up-to-date transport information.
Yes, the region offers various options for accommodation and dining. Towns like Saint-Nazaire-en-Royans, near the Thaïs Cave, and villages around Choranche often have cafes, restaurants, and guesthouses. For example, in Choranche, you can find shops and places to get supplies near the entrance to Gournier Cave. Larger towns like Romans-sur-Isère or Beaucaire (if visiting the Abbaye de Saint-Roman) will have a wider range of services.


Extend your search for the best caves by checking out these guides of the top ones around Saint-Romans: