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Entrée de Pair-non-Pair

France France Cave with prehistoric art

Pair-non-Pair

14 °C inside, all year.

Underground riverNo public accessPrehistoric art

See the descentHow to visit

Xabi Rome-Hérault · CC BY 3.0

The descent

The entrance, at 28 m.

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

depth not publishedEntrance1.0 kmvertical × 32.4depth not publishedEntrance1.0 kmvertical × 70.1

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.

28m

Entrance altitude

from the 30 m relief model

14°C

Inside, all year

the yearly average outside, at the entrance

Inside and outside

14 °C inside, all year.

Deep inside, a cave keeps the average temperature of the year outside: about 14 °C here, in January and in August. In August the afternoon reaches 28 °C at the entrance, 14 °C warmer than inside: take a jacket. The best months to escape the heat are from July to August. The wettest months are in January and in November: water rises fast underground, so never go in without a guide after heavy rain.

outside, at the entrance (28 m)inside
  1. 10°2°Jan
  2. 11°2°Feb
  3. 14°4°Mar
  4. 18°7°Apr
  5. 21°10°May
  6. 25°14°Jun
  7. 27°16°Jul
  8. 28°16°Aug
  9. 25°13°Sep
  10. 20°10°Oct
  11. 14°6°Nov
  12. 10°3°Dec
Inside: 14 °C all yearEscape the heat: Jul–AugWettest: Jan, Nov

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.

Cave in France

Pair-non-Pair is a cave with prehistoric art in France. The entrance is at 28 m. It has an underground river. It is closed to the public to protect it.

Read more on Wikipedia

Getting there.

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 Le Moron runs highest from November to February.

The Le Moron carries about 2.8 m³/s on average here. It runs highest from November to February. It is lowest from July to September.

  1. 4.8 m³/sJan
  2. 3.8 m³/sFeb
  3. 3.3 m³/sMar
  4. 2.6 m³/sApr
  5. 2.3 m³/sMay
  6. 1.7 m³/sJun
  7. 1.1 m³/sJul
  8. 0.9 m³/sAug
  9. 1.1 m³/sSep
  10. 2.2 m³/sOct
  11. 3.9 m³/sNov
  12. 4.6 m³/sDec

From about 0.90 m³/s in the lowest month to 4.8 m³/s in the highest. Its basin above this point covers 168 km².

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 Pair-non-Pair (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.

  • 3springs within 2 kmSource de Bonnefont ou de Sablas, Source de Bearnes
  • 6car parks within 2 km
  • 12bus stops within 2 km
  • 6campsites within 8 kmChâteau Bertinerie, Camping Port Neuf, Camping municipal de la Citadelle and 3 more
  • 10hotels and guesthouses within 8 kmVine house, Les Hauts de Guerry, Villa Fablion and 7 more
  • 4restaurants and cafés within 3 km
  • other cave entrances within 3 km
  • sinkholes within 3 km
  • caving clubs and spots within 15 km
  • viewpoints within 3 km
  • marked hiking routes within 3 km
  • climbing crags within 3 km
  • named waterfalls within 4 km
  • information boards and visitor centres within 3 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

  • Marcamps0.7 km in a straight line
  • Tauriac1.1 km in a straight line
  • Saint-Gervais3.8 km in a straight line
  • Ambès3.9 km in a straight line
  • Bourg4.5 km in a straight line
  • Pugnac4.8 km in a straight line
  • Peujard4.9 km in a straight line
  • Aubie7.8 km in a straight line

Month by month

The weather outside, at the entrance.

JanFebMarAprMayJunJulAugSepOctNovDec
Afternoon101114182125272825201410
Afternoon101114182125272825201410
Night224710141616131063
Rain (mm)825863586656414646688580
Rainy days1310111212109910121414
Sun hours/day2.44.35.57.17.88.89.08.37.44.83.22.5
Snow on the ground (cm)321000000002
AfternoonAfternoonNightRain (mm)Sun hours/day
Jan10102822.4
Feb11112584.3
Mar14144635.5
Apr18187587.1
May212110667.8
Jun252514568.8
Jul272716419.0
Aug282816468.3
Sep252513467.4
Oct202010684.8
Nov14146853.2
Dec10103802.5

Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the altitude of the entrance (28 m) with the standard lapse rate. Not a forecast.

Photographs

Inside and around.

Gravure rupestre (mammouth)
Xabi Rome-Hérault · CC BY 3.0

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
202067%85%137%126%176%137%9%111%157%240%22%235%
2021110%117%25%33%133%249%91%45%113%41%61%114%
202238%55%59%90%24%152%8%42%77%62%117%66%
2023102%67%103%78%68%167%46%67%141%184%193%146%
202455%167%184%80%177%134%56%98%249%123%52%71%
202594%48%28%58%34%28%29%32%40%44%53%34%

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

Caves nearby.

Pair-non-Pair

France

  • —Depth
  • —Galleries
  • 28 mEntrance altitude
  • 14 °CInside, all year

Lascaux

France · 131 km

  • —Depth
  • —Galleries
  • 197 mEntrance altitude
  • 12 °CInside, all year

See the guide

Gabillou cave

France · 69 km

  • —Depth
  • —Galleries
  • 60 mEntrance altitude
  • 13 °CInside, all year

See the guide

Font-de-Gaume cave

France · 121 km

  • —Depth
  • —Galleries
  • 91 mEntrance altitude
  • 13 °CInside, all year

See the guide

Where these figures come from

Name, type, published depth and length, visitorsWikidata (Q1643799) · 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

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

The family

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