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Vallorbe Grottos Subterranean River

Switzerland Switzerland Cave

Vallorbe Caves

8 °C inside, all year.

Underground river

See the descentHow to visit

Micha L. Rieser · Attribution

The descent

The entrance, at 851 m.

The real relief above Vallorbe Caves, measured on the Copernicus model every 30 m, and the cave going down at the same vertical scale.

depth not publishedEntrance1,449 m1.0 kmvertical × 3.6depth not publishedEntrance1,449 m1.0 kmvertical × 7.9

The depth is the one published by those who explored it; the shape of the galleries is a sketch, not a survey. No depth has been published for this cave yet.

851m

Entrance altitude

from the 30 m relief model

8°C

Inside, all year

the yearly average outside, at the entrance

555m

Rock above

the highest point within 1.5 km

Inside and outside

8 °C inside, all year.

Deep inside, a cave keeps the average temperature of the year outside: about 8 °C here, in January and in August. In July the afternoon reaches 23 °C at the entrance, 14 °C warmer than inside: take a jacket.

outside, at the entrance (851 m)inside
  1. 2°-4°Jan
  2. 3°-4°Feb
  3. 7°0°Mar
  4. 12°3°Apr
  5. 16°7°May
  6. 20°12°Jun
  7. 23°14°Jul
  8. 22°13°Aug
  9. 18°9°Sep
  10. 14°5°Oct
  11. 7°0°Nov
  12. 2°-3°Dec
Inside: 8 °C all yearFrost outside: Dec–Feb

Outside: afternoon and night averages for 1991–2020 (NASA POWER) brought to the altitude of the entrance. Inside: the yearly average, which deep parts of a cave keep. Near the entrance it follows the weather a little.

Caves near Vallorbe, Switzerland

Vallorbe Caves is a cave in Switzerland. The entrance is at 851 m. It has an underground river.

Getting there.

  • Wild cave: only with caving equipmentNo paths or lights inside. Go only with a caving club or a qualified guide.
  • Vallorbenearest town · 3.0 km in a straight line
  • Viewpointsnearest viewpoint · 0.3 km from the entrance
  • Geneva International Airport (GVA)nearest airport with scheduled flights · 54 km in a straight lineCar hire at GVA airport (Geneva)Discover Cars · sponsored link

Plan the visit

Guided tours, a bed nearby, a car.

Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.

The water

The L'Orbe runs highest from October to June.

The L'Orbe carries about 11 m³/s on average here.

  1. 15 m³/sJan
  2. 12 m³/sFeb
  3. 16 m³/sMar
  4. 14 m³/sApr
  5. 16 m³/sMay
  6. 12 m³/sJun
  7. 7.3 m³/sJul
  8. 6.8 m³/sAug
  9. 4.2 m³/sSep
  10. 9.3 m³/sOct
  11. 11 m³/sNov
  12. 14 m³/sDec

From about 4.2 m³/s in the lowest month to 16 m³/s in the highest. Its basin above this point covers 258 km².

The Orbe from source to mouth on Riveryas — coming soon

Estimate: long-term flow from the HydroATLAS model (WaterGAP, 1971–2000) shaped by the monthly rain, snow and temperature of the area (NASA POWER). Dams change it. Not a forecast.

From above.

The ground above the cave, with the relief shaded, the line of the section and what people have mapped around the entrance.

The ground above Vallorbe Caves (Sentinel-2) N 1.5 km

Sentinel-2 cloudless 2016 (EOX, CC BY 4.0), 6.0 × 6.0 km, north up. The line is the section above. Points © OpenStreetMap contributors.

Around the entrance.

  • 15other cave entrances within 3 kmGrotte de Vallorbe, Entonnoir, La Cave à Metsire, Grotte aux Fées and 12 more
  • 1springs within 2 km
  • 5viewpoints within 3 kmDent de Vaulion, Roche à l'Aigle and 3 more
  • 33marked hiking routes within 3 kmEuropean long distance path E4 - part Switzerland, Grottes de l'Orbe - fixme, Saigne Geret-Les Revines and 30 more
  • 1climbing crags within 3 kmMur de grimpe
  • 24car parks within 2 km
  • 29information boards and visitor centres within 3 km
  • 7bus stops within 2 km
  • 14campsites within 8 kmLe Patinage, Le Téléski, Stellplatz Crêt Blanc and 11 more
  • 33hotels and guesthouses within 8 kmHôtel de la truite, Le Levant, Les Playnoz and 30 more
  • 18restaurants and cafés within 3 km
  • sinkholes within 3 km
  • caving clubs and spots within 15 km
  • named waterfalls within 4 km

Counted in OpenStreetMap, the map anyone can edit, around the entrance. A low number may just mean nobody has mapped it yet. © OpenStreetMap contributors (ODbL).

Towns nearby

  • Vallorbe3.0 km in a straight line
  • Jougne7.9 km in a straight line
  • La Sarraz13 km in a straight line
  • Le Chenit13 km in a straight line
  • Orbe14 km in a straight line
  • Pampigny14 km in a straight line
  • Cossonay15 km in a straight line
  • Les Fourgs16 km in a straight line

In our other atlases

What else is around Vallorbe Caves.

The river at the entrance, the waterfalls, the lakes, the mountains and volcanoes above, the canyons, beaches and islands nearby — from our other atlases.

Peakyas10 mountains within 10 km
Dent de Vaulion1,483 m · 1.6 kmLa Dent1,201 m · 2.9 kmMont d'Or1,463 m · 3.3 kmLe Morond1,419 m · 5.8 kmHaut du Mollendruz1,441 m · 6.2 kmMont Risoux1,419 m · 8.9 kmLe Gros Crêt / Grand Crêt1,419 m · 9.0 kmLe Risel1,527 m · 9.5 km

Figures from the sister sites' databases (Wikidata, HydroATLAS, GeoNames, NOAA, OpenStreetMap). Links open when each site is online.

Month by month

The weather outside, at the entrance.

JanFebMarAprMayJunJulAugSepOctNovDec
Afternoon2371216202322181472
Afternoon2371216202322181472
Night-4-4037121413950-3
Rain (mm)9675928211710710110780103100108
Rainy days131112131615141312131414
Sun hours/day3.34.45.56.36.68.58.97.96.95.03.12.6
Snow on the ground (cm)161594100002815
AfternoonAfternoonNightRain (mm)Sun hours/day
Jan22-4963.3
Feb33-4754.4
Mar770925.5
Apr12123826.3
May161671176.6
Jun2020121078.5
Jul2323141018.9
Aug2222131077.9
Sep18189806.9
Oct141451035.0
Nov7701003.1
Dec22-31082.6

Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the altitude of the entrance (851 m) with the standard lapse rate. Not a forecast.

Photographs

Inside and around.

Woman in cave 2011
RForster · CC BY-SA 4.0
Grotte de Vallorbe
Richard Forster · CC BY-SA 4.0
Grottes de Vallorbe
Jurate Daugelaite · CC BY-SA 4.0

Recent years

Wet years, dry years.

Rain of each month as a share of the 1991–2020 average. A dry year means a lower river and hotter rock; a wet one, more water in the gorge.

JanFebMarAprMayJunJulAugSepOctNovDec
202056%175%92%50%93%142%37%99%104%203%25%89%
2021116%62%57%47%132%121%171%61%82%77%57%157%
202250%116%24%120%43%99%32%67%221%88%127%124%
202391%12%145%127%61%59%80%82%77%164%260%162%
2024122%102%103%115%146%117%90%92%256%146%69%110%
2025155%52%50%104%81%101%109%100%201%151%147%29%

130% or more: wet month 70% or less: dry month

Caves nearby.

Vallorbe Caves

Switzerland

  • —Depth
  • —Galleries
  • 851 mEntrance altitude
  • 8 °CInside, all year

Glacière de Monlési

Switzerland · 32 km

  • —Depth
  • —Galleries
  • 1,138 mEntrance altitude
  • 0 °CInside, all year

See the guide

Cotencher, Palaeolithic residential cave

Switzerland · 46 km

  • —Depth
  • —Galleries
  • 680 mEntrance altitude
  • 9 °CInside, all year

See the guide

Grotte des Planches

France · 45 km

  • —Depth
  • —Galleries
  • 525 mEntrance altitude
  • 9 °CInside, all year

See the guide

Where these figures come from

Name, type, published depth and length, visitorsWikidata (Q671888) · CC0
The relief above, the entrance altitude, the section and the 3D modelCopernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA
River flow and basinHydroATLAS / RiverATLAS v1.0 (Linke et al. 2019) · CC BY 4.0
ClimateNASA POWER, 1991–2020
Entrances, springs, sinkholes, opening hours and what is around© OpenStreetMap contributors · ODbL
ImagesEOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons
Rivers, waterfalls, lakes, mountains, canyons, beaches and islands nearbyCoastya, Lakeyas, Peakyas, Cascadyas, Islandyas, Riveryas

Every figure is an average, an estimate or a count from a public dataset. Licences and methods: data sources.

The family

Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers, canyons, caves, dark skies, viewpoints, birdwatching or forests?

Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.

beachesCoastyaFind your beach: sea temperature, sun and swimming month by month.Visit lakesLakeyasEvery lake on Earth: water temperature, ice, depth and the shore.Visit mountainsPeakyasEvery summit in 3D: summit weather, the 0 °C line, huts and trails.Visit waterfallsCascadyasEvery waterfall: height, flow month by month and when it roars.Visit islandsIslandyasEvery island from the sea up: size, sea temperature, ferries and 3D.Visit riversRiveryasEvery river from source to sea: the journey, the flow and the basin in numbers.Visit canyonsCanyonyasEvery canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Visit
cavesCavernyasEvery cave with its real depth and length: the rock above, the temperature inside all year, and how to visit.You are here
dark skiesDarkskyasWhere the night is still dark: the sky of every place, the Milky Way month by month, the Moon, eclipses and auroras.Coming soonVisit
viewpointsViewyasEvery viewpoint with its real 360° panorama: the peaks you can name, how far you see and where the sun sets.Coming soonVisit
birdwatchingBirdyasEvery bird sanctuary and wetland with the species recorded month by month: who is resident, who comes for the summer, who only passes through.Coming soonVisit
forestsForestyaEvery forest with its land-cover rings, what grows and lives in it, and the best months to walk it.Coming soonVisit