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Gwangmyeong Cave

South Korea South Korea Cave

Gwangmyeong Cave

11 °C inside, all year.

See the descentHow to visit

S099001 · CC BY-SA 4.0

The descent

The entrance, at 77 m.

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

depth not publishedEntrance235 m1.0 kmvertical × 11.4depth not publishedEntrance235 m1.0 kmvertical × 24.6

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.

77m

Entrance altitude

from the 30 m relief model

11°C

Inside, all year

the yearly average outside, at the entrance

140m

Rock above

the highest point within 1.5 km

Inside and outside

11 °C inside, all year.

Deep inside, a cave keeps the average temperature of the year outside: about 11 °C here, in January and in August. In August the afternoon reaches 28 °C at the entrance, 17 °C warmer than inside: take a jacket. The best months to escape the heat are from July to August.

outside, at the entrance (77 m)inside
  1. 0°-7°Jan
  2. 3°-5°Feb
  3. 8°-1°Mar
  4. 15°4°Apr
  5. 21°11°May
  6. 25°16°Jun
  7. 27°21°Jul
  8. 28°22°Aug
  9. 24°16°Sep
  10. 18°10°Oct
  11. 10°2°Nov
  12. 2°-5°Dec
Inside: 11 °C all yearEscape the heat: Jul–AugFrost outside: Dec–FebWettest: Jul–Sep

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.

Tourist attraction in Gyeonggi-do, South Korea

Gwangmyeong Cave is a cave in South Korea. The entrance is at 77 m.

Read more on Wikipedia

Getting there.

  • Wild cave: only with caving equipmentNo paths or lights inside. Go only with a caving club or a qualified guide.
  • Siheungdongnearest town · 5.0 km in a straight line
  • Seoul Gimpo International Airport (GMP)nearest airport with scheduled flights · 16 km in a straight lineCar hire at GMP airport (Seoul)Discover Cars · sponsored link

Plan the visit

Guided tours, a bed nearby, a car.

Car hire at GMP airport (Seoul)Discover CarsSee prices 

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.

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 Gwangmyeong Cave (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 km진달래약수, 천연약수, 절골약수터
  • 1marked hiking routes within 3 km[서울둘레길] 13코스
  • 16car parks within 2 km
  • 1information boards and visitor centres within 3 km
  • 98bus stops within 2 km
  • 8campsites within 8 km제1야영장, 제2야영장, 병목안캠핑장 and 5 more
  • 122hotels and guesthouses within 8 km폭스모텔, LA모텔, 수모텔 and 119 more
  • 41restaurants 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
  • climbing crags within 3 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

  • Siheungdong5.0 km in a straight line
  • Gwangmyeong5.7 km in a straight line
  • Anyang-si6.6 km in a straight line
  • Gunpo9.7 km in a straight line
  • Uiwang10 km in a straight line
  • Bucheon-si11 km in a straight line
  • Ansan-si12 km in a straight line
  • Incheon14 km in a straight line

In our other atlases

What else is around Gwangmyeong Cave.

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
Geumgang-san · 4.6 kmMyeongseongju-san · 4.6 kmSamseongsan (Gyeonggi/Seoul)481 m · 5.9 kmSamseongsan · 6.7 kmSurisan475 m · 7.2 kmSuri-san · 8.4 kmMount Maebong108 m · 8.9 kmGwanaksan632 m · 9.1 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
Afternoon03815212527282418102
Afternoon03815212527282418102
Night-7-5-141116212216102-5
Rain (mm)2030377284116360260138534722
Rainy days4467810181710685
Sun hours/day5.25.86.76.87.16.03.65.15.76.24.64.7
Snow on the ground (cm)151460000000212
AfternoonAfternoonNightRain (mm)Sun hours/day
Jan00-7205.2
Feb33-5305.8
Mar88-1376.7
Apr15154726.8
May212111847.1
Jun2525161166.0
Jul2727213603.6
Aug2828222605.1
Sep2424161385.7
Oct181810536.2
Nov10102474.6
Dec22-5224.7

Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the altitude of the entrance (77 m) with the standard lapse rate. Not a forecast.

Photographs

Inside and around.

20230902 Gwangmyeong Cave 001
Jjw · CC BY-SA 4.0
20230902 Gwangmyeong Cave 002
Jjw · CC BY-SA 4.0
230902 Gwangmyeong Cave 01
*Youngjin · CC BY-SA 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
2020336%180%33%27%126%116%105%222%176%16%114%23%
2021104%25%284%139%227%96%37%136%118%156%171%68%
202230%13%251%77%32%446%80%123%101%215%127%59%
2023163%12%25%61%123%121%89%101%132%66%208%444%
2024125%245%92%73%151%78%159%48%143%206%138%37%
2025104%22%105%120%124%127%61%76%230%449%48%183%

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

Caves nearby.

Gwangmyeong Cave

South Korea

  • —Depth
  • —Galleries
  • 77 mEntrance altitude
  • 11 °CInside, all year

Gosu Cave

South Korea · 143 km

  • —Depth
  • —Galleries
  • 157 mEntrance altitude
  • 11 °CInside, all year

See the guide

Hwanseon Cave

South Korea · 190 km

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

See the guide

Seongnyugul Cave

South Korea · 229 km

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

See the guide

Where these figures come from

Name, type, published depth and length, visitorsWikidata (Q39060665) · 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
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