Natural monuments around Sergey offer diverse landscapes for exploration. This region features a variety of natural formations, including waterfalls, ridges, and nature reserves. Visitors can discover several distinct natural monuments within Sergey's geographical area. The area provides opportunities to observe geological features and local ecosystems.
Last updated: May 14, 2026
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The Creux de Terre near Yverdon-les-Bains is an impressive karst sinkhole and also a significant nature reserve. The basin was formed by geological processes in which limestone sank, forming a funnel-shaped basin. Today, the area is home to moist meadows, ponds, small forests, and rich biodiversity. Amphibians such as frogs, toads, and newts find ideal living conditions here. Numerous bird species also breed or rest in the reserve. Walking trails with information panels lead through the basin and explain its geology, flora, and fauna. The Creux de Terre is easily accessible from nearby Yverdon.
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Mountain biking is prohibited in these forests! This is a natural forest reserve. This notice is issued by the Pro Natura association, owner and manager of the site. Thank you for your commitment to nature.
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A little smaller than the Chasseron, but the view is also gigantic
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It is a rough walk from the Chasseron to the Rochers, a small ridge walk that is worth it
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An idyllic place that changes from spectacular to romantic depending on the water level of the "Nozon". Only during the holiday season and when the weather is nice at the weekends is an increased crowd to be expected.
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Superb fall in the middle of the forest, beautiful communion with nature.
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Beautiful views with wonderful photo opportunities
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Around Sergey, you can explore a diverse range of natural monuments including impressive waterfalls, scenic ridges, tranquil nature reserves, historical former quarries, and peaceful forest trails. The region is known for its varied landscapes and geological features.
Yes, the Sergey area offers family-friendly natural monuments. The Creux de Terre Nature Reserve is ideal for families, offering opportunities for birdwatching and observing nature around its ponds. Additionally, the Forest Trails of Bois de Chênes, Echilly provide gentle paths suitable for family walks in a natural forest reserve.
For expansive views, the Petites Roches Ridge is an excellent choice. Reaching 1,583 meters in height, it provides breathtaking vistas and features a hiking trail that leads towards the Chasseron.
The Dard Waterfall is best seen during transitional seasons or after rainfall, when its cascades are most magnificent. Generally, spring and autumn offer pleasant weather for exploring the region's natural sites, while summer might see some waterfalls with reduced flow.
Absolutely! The region around Sergey offers numerous opportunities for outdoor activities. You can find various running trails, including challenging loops like 'Le Suchet loop from Cul du Villars'. The Petites Roches Ridge also has a dedicated hiking trail.
Yes, The Yellow Quarry (Former Bellerive Quarry) is a natural monument with significant historical value. Active from the 15th to the early 20th century, it provided the distinctive yellow stone used in local architecture. Today, it's also recognized for its ecological importance, hosting unique flora and fauna, including threatened orchid species.
The Creux de Terre Nature Reserve is an excellent spot for wildlife observation, particularly birdwatching around its ponds. This reserve is home to a rich biodiversity, including amphibians like frogs, toads, and newts, and numerous bird species that breed or rest there. The Yellow Quarry also has ecological interest for its fauna and flora.
Yes, the Sergey area provides options for cycling enthusiasts. You can explore various MTB trails, such as the 'Saut du Day Waterfall – Dard Waterfall loop from Orbe'. For gravel biking, there are also several routes available, including longer, more challenging options like the 'Areuse River – Creux du Van loop from Sainte-Croix'. Please note that mountain biking is prohibited in the Forest Trails of Bois de Chênes, Echilly as it is a natural forest reserve.
The Creux de Terre Nature Reserve is unique as an impressive karst sinkhole formed by geological processes. It features moist meadows, multiple ponds, and small forests, creating a rich habitat for biodiversity. It's an ideal location for birdwatching and observing nature, with specific areas designated for fishing.
Visitors frequently praise the magnificent cascades and the 'Colorado Canyon feeling' at Dard Waterfall. The expansive views from Petites Roches Ridge are also highly appreciated. Overall, the komoot community has shown strong approval, with these locations garnering over 230 upvotes and more than 120 photos.
The Dard Waterfall, with its magnificent cascades and small pond, offers stunning photographic opportunities, especially during transitional seasons or after rain. The panoramic views from Petites Roches Ridge also provide excellent subjects for landscape photography.


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