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France
Bourgogne-Franche-Comté
Lons-Le-Saunier

Geraise

Top 13 Natural Monuments around Geraise

Best natural monuments around Geraise showcase a landscape characterized by diverse geological formations. This region features dramatic karst springs, impressive caves, and elevated viewpoints. The natural environment offers opportunities to explore powerful waterfalls, deep valleys, and scenic vistas.

Best natural monuments around Geraise

  • The most popular natural monument is Lison Spring, a cave and powerful waterfall that never runs dry. This site features a converted cave and a turquoise blue swimming pool at the base of a spectacular cliff.

Last updated: July 18, 2026

Lison Spring

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At the source of the Lison, you will find a powerful waterfall, which never runs dry, a converted cave that you can enter and a turquoise blue swimming pool. All …

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Sarrazine Cave

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The Sarrazine cave is a real "wild cathedral" carved into the limestone. 100 meters high and 30 wide, the cave can be seen from afar.
Do not hesitate to approach …

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Verneau Spring

Highlight • Cave

This is where the collection water from the largest cave system in the Doubs department comes from. Depending on the weather, sometimes more, sometimes less or not at all after a long period of drought.

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Croix de Poupet

Highlight • Viewpoint

South foothills of Mont Poupet, beautiful viewpoint on Salins-les-Bains and, with good views, to Mont Blanc. Located directly on the GR 59 or as a short detour from the road.

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Creux Billiards - is a remarkable karst cauldron with a beautiful waterfall.
The whole also forms an underground cave system with the neighboring source - Source du Lison. It is best to visit after long rains.

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Downhill Distortion
July 1, 2025, Creux Billard Karst Basin and Waterfall

a big hole

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a perfect place to recharge your batteries

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Remember not to venture too far into the cave

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Peter
October 5, 2024, Source du Lison

The spring is simply gigantic and there aren't too many tourists - at least when we were there.

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The ascent to the cross is car-friendly and has steps. The GR59 may have been rerouted in the meantime, but a detour here is definitely justified. The paths on Mt Poupet are well signposted and the summit cross is highly recommended.

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The Verneau is an underground river in the Franche-Comté Jura. It collects water from the Déservillers plateau and comes to the surface near Nans-sous-Sainte-Anne before flowing into the Lison. It is one of the largest underground rivers in France. During our visit, we found a notice saying that it is forbidden to enter the area around the spring or waterfall.

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This highlight is located on the plateau under which the cave opening is located. It can be found via a dead-end path, but the view is a bit sobering.

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The Sarrasine Cave impresses with its 90 m high portal. A 40 m thick layer of limestone separates it from the upper part of the plateau. The cave system has been explored for about 4 km, and hikers equipped with a flashlight can access it up to a small lake inside. https://www.lieux-insolites.fr

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Frequently Asked Questions

What unique geological formations can be found around Geraise?

The Geraise region is renowned for its diverse geological formations, primarily featuring dramatic karst springs, impressive caves, and powerful waterfalls. You can explore sites like Lison Spring, a powerful karst spring with a waterfall and a converted cave, or the remarkable Creux Billard — Karst Basin and Waterfall, a mighty valley with a significant waterfall.

Are there any notable viewpoints in the Geraise region?

Yes, Croix de Poupet offers a beautiful viewpoint on Salins-les-Bains and, on clear days, even Mont Blanc. It's located on the south foothills of Mont Poupet and is easily accessible.

Are there hiking trails near the natural monuments in Geraise?

Absolutely. The Geraise area offers numerous hiking opportunities. For example, you can find trails like 'La Source du Lison Trail' or 'Sarrazine Cave – Lison Spring loop' which allow you to explore these natural wonders. You can find more details and routes on the Hiking around Geraise guide.

What other outdoor activities are available near Geraise's natural monuments?

Beyond hiking, the region around Geraise is excellent for cycling and mountain biking. There are various routes, such as 'Along the Loue – Salins-les-Bains loop' for cycling or 'Lison Waterfalls – Lison Valley loop' for mountain biking. Explore more options on the Cycling around Geraise and MTB Trails around Geraise guides.

Are the natural monuments around Geraise family-friendly?

Yes, several natural monuments are suitable for families. Lison Spring, with its accessible path, converted cave, and turquoise swimming pool, is particularly noted as family-friendly by visitors.

What is the best time of year to visit the natural monuments in Geraise?

The natural monuments in Geraise, especially the springs and waterfalls, are particularly impressive after long rainy periods, as the water flow is at its strongest. While popular on weekends, visiting during the week can offer a more serene experience. The region is beautiful year-round, with each season offering a different perspective on the landscape.

What should I wear when hiking to natural monuments in Geraise?

Given the varied terrain, including paths along rivers and potentially damp cave entrances, it's advisable to wear sturdy, waterproof hiking shoes. Layers of clothing are recommended to adapt to changing weather conditions, and a waterproof jacket is always a good idea, especially if visiting after rain to see the waterfalls at their best.

Are there any less crowded natural monuments or hidden gems in Geraise?

While popular spots like Lison Spring can get busy on weekends, exploring other sites like Verneau Spring might offer a quieter experience. The Sarrazine Cave, with its impressive portal, can be viewed from a distance, and exploring its entrance can be a unique adventure, especially if you avoid peak times.

How long does it typically take to visit the natural monuments in Geraise?

The duration of your visit depends on the specific monument and your activity. For example, a visit to Lison Spring can be a pleasant short walk, while exploring the area around Sarrazine Cave or hiking to Croix de Poupet might take a few hours, especially if you combine it with a longer trail.

What do visitors enjoy most about the natural monuments in Geraise?

Visitors frequently praise the powerful waterfalls, the unique experience of exploring converted caves, and the stunning turquoise pools found at the base of spectacular cliffs. The sheer scale of formations like the 'wild cathedral' of Sarrazine Cave and the panoramic views from Croix de Poupet are also highly appreciated.

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

Chaux-Des-CrotenayPillemoineLoulleLe VaudiouxEntre-Deux-MontsLe FrasnoisChâtelneufSafflozMarignyChevrotaineFoncine-Le-BasFoncine-Le-HautCharcierDoucierLes Planches-En-MontagneSyamFontenuCransMenétrux-En-JouxSongesonSalins-Les-BainsClucyMont-Sur-MonnetCharézierLes ChalesmesSirodArsure-ArsuretteThésyUxellesLa FrasnéeCognaBourg-De-SirodFrarozChampagnoleCizeVertambozBief-Des-MaisonsGilloisChâtillonClairvaux-Les-LacsHautecourMignovillardLe PasquierNeyBarretainePolignyLa FavièreBesainMontrondSouciaVevyCerniébaudChaux-ChampagnyIvoryPont-D'HéryArboisBoissiaBlyePublyChilly-Sur-SalinsMesnayLa ChâtelaineNognaVers-En-MontagneMarnozAiglepierrePretinMesnoisSaint-MaurBraconAreschesSaint-ThiébaudMontigny-Lès-ArsuresLes ArsuresOrgeletAndelot-En-MontagneCernonVosblesLes Planches-Près-ArboisVadansIvreySaizenayPoids-De-FioleHauterocheBriodVergesCernansDournonConteChaussenansAbergement-Lès-ThésyLemuyVaux-Sur-PolignyTourmontChamolePupillinMolainValempoulièresVillette-Lès-ArboisThoiretteOnozBonnefontaineLa MarreFay-En-MontagneCornodRevignyConliègeLa Chapelle-Sur-FurieuseGrozonBuvillyPlaisiaLa Tour-Du-MeixArinthodAromasVernantoisSaint-Cyr-MontmalinBlois-Sur-SeilleLadoye-Sur-SeilleBaume-Les-MessieursChâteau-ChalonMontigny-Sur-L'AinArlayPannessièresPicarreauLa LatetteAbergement-Le-PetitLentDompierre-Sur-MontMéronaPrésillyLargillay-MarsonnayBarésia-Sur-L'AinThoiriaPont-De-PoitteLégnaSavignaChambériaSarrognaValfin-Sur-ValouseVesclesLavans-Sur-ValouseChissériaCéziaGenodMenétru-Le-VignobleLe LouverotVoiteurNevy-Sur-SeilleLavignyDomblansMontainLe VernoisSaint-Germain-En-MontagneVannozLe PinPerrignyL'ÉtoileChilleVilleneuve-Sous-PymontMontmorotPont-Du-NavoyBilleculÉcrilleCoisiaFétignyMarnéziaPatornayAlièzeVilleneuve-Lès-CharnodCharnodCondesSaint-HymetièreChemillaChavériaMournans-CharbonnyLes NansÉquevillonQuintignySaint-DidierPlainoiseauLe FiedFrontenayMontaiguRuffey-Sur-SeilleRixMontmarlonAbergement-Le-GrandNozeroyCharencyDoyeSapoisMontfleurBourciaDramelayPlasneChapoisAndelot-MorvalChatonnayMoutonneVal-D'ÉpyVillechantriaMontagna-Le-TemplierLainsSaint-JulienLa Balme-D'ÉpyMoutouxMacornayMoironArdonBréryMiéryCourbouzon

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