Turkey Show cave
Cehennemağzı Cave
15 °C inside, all year.
Oğuz67 · CC BY-SA 4.0
The descent
The entrance, at 18 m.
The real relief above Cehennemağzı Cave, measured on the Copernicus model every 30 m, and the cave going down at the same vertical scale.
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.
18m
Entrance altitude
from the 30 m relief model
15°C
Inside, all year
the yearly average outside, at the entrance
188m
Rock above
the highest point within 1.5 km
Inside and outside
15 °C inside, all year.
Deep inside, a cave keeps the average temperature of the year outside: about 15 °C here, in January and in August. In August the afternoon reaches 26 °C at the entrance, 11 °C warmer than inside: take a jacket.
- 8°6°Jan
- 8°6°Feb
- 10°7°Mar
- 13°10°Apr
- 17°15°May
- 22°20°Jun
- 25°23°Jul
- 26°24°Aug
- 23°21°Sep
- 19°17°Oct
- 15°12°Nov
- 11°8°Dec
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.
Show cave in Zonguldak, Turkey
Cehennemağzı Cave is a show cave in Turkey. The entrance is at 18 m. It has stalactites and stalagmites. It is open to visitors.
Getting there.
- Show cave: open to visitorsUsually with a guided tour; check times and tickets on the official site.
- Ereğlinearest town · 1.2 km in a straight line
- Parking 260 m awaynearest car park in OpenStreetMap, straight line
- Göztepenearest viewpoint · 2.1 km from the entrance
- Zonguldak Çaycuma Airport (ONQ)nearest airport with scheduled flights · 61 km in a straight lineCar hire in CaycumaDiscover 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.
From above.
The ground above the cave, with the relief shaded, the line of the section and what people have mapped around the entrance.
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.
- 1other cave entrances within 3 kmCehennem Ağzı Mağarası
- 1viewpoints within 3 kmGöztepe
- 10car parks within 2 km
- 2information boards and visitor centres within 3 km
- 35bus stops within 2 km
- 10hotels and guesthouses within 8 kmElif Otel, Grand Ereğli Hotel, Ereğli Öğretmenevi and 7 more
- 54restaurants and cafés within 3 km
- springs within 2 km
- sinkholes within 3 km
- caving clubs and spots within 15 km
- marked hiking routes within 3 km
- climbing crags within 3 km
- named waterfalls within 4 km
- campsites within 8 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
- Ereğli1.2 km in a straight line
- Alaplı12 km in a straight line
- Kılçak14 km in a straight line
- Ormanlı22 km in a straight line
In our other atlases
What else is around Cehennemağzı 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.
Peakyas1 mountains within 10 kmFigures 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Afternoon | 8 | 8 | 10 | 13 | 17 | 22 | 25 | 26 | 23 | 19 | 15 | 11 |
| Afternoon | 8 | 8 | 10 | 13 | 17 | 22 | 25 | 26 | 23 | 19 | 15 | 11 |
| Night | 6 | 6 | 7 | 10 | 15 | 20 | 23 | 24 | 21 | 17 | 12 | 8 |
| Rain (mm) | 103 | 79 | 74 | 46 | 42 | 50 | 36 | 38 | 65 | 82 | 84 | 116 |
| Rainy days | 16 | 13 | 12 | 9 | 8 | 9 | 6 | 6 | 9 | 11 | 11 | 16 |
| Sun hours/day | 2.1 | 3.2 | 4.8 | 6.8 | 8.6 | 10.7 | 11.4 | 10.3 | 7.6 | 5.2 | 3.8 | 2.4 |
| Snow on the ground (cm) | 9 | 8 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 6 |
| Afternoon | Afternoon | Night | Rain (mm) | Sun hours/day | |
|---|---|---|---|---|---|
| Jan | 8 | 8 | 6 | 103 | 2.1 |
| Feb | 8 | 8 | 6 | 79 | 3.2 |
| Mar | 10 | 10 | 7 | 74 | 4.8 |
| Apr | 13 | 13 | 10 | 46 | 6.8 |
| May | 17 | 17 | 15 | 42 | 8.6 |
| Jun | 22 | 22 | 20 | 50 | 10.7 |
| Jul | 25 | 25 | 23 | 36 | 11.4 |
| Aug | 26 | 26 | 24 | 38 | 10.3 |
| Sep | 23 | 23 | 21 | 65 | 7.6 |
| Oct | 19 | 19 | 17 | 82 | 5.2 |
| Nov | 15 | 15 | 12 | 84 | 3.8 |
| Dec | 11 | 11 | 8 | 116 | 2.4 |
Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the altitude of the entrance (18 m) with the standard lapse rate. Not a forecast.
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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020 | 107% | 145% | 68% | 77% | 164% | 213% | 121% | 2% | 36% | 150% | 61% | 43% |
| 2021 | 171% | 114% | 174% | 197% | 156% | 207% | 106% | 86% | 96% | 76% | 116% | 147% |
| 2022 | 171% | 171% | 99% | 131% | 68% | 314% | 59% | 177% | 114% | 73% | 62% | 63% |
| 2023 | 36% | 113% | 171% | 220% | 121% | 199% | 186% | 44% | 35% | 59% | 354% | 120% |
| 2024 | 117% | 63% | 109% | 77% | 107% | 13% | 108% | 20% | 162% | 191% | 138% | 92% |
| 2025 | 87% | 157% | 35% | 126% | 81% | 19% | 7% | 30% | 76% | 233% | 50% | 115% |
130% or more: wet month 70% or less: dry month
Caves nearby.
Cehennemağzı Cave
Turkey
- —Depth
- —Galleries
- 18 mEntrance altitude
- 15 °CInside, all year
Where these figures come from
| Name, type, published depth and length, visitors | Wikidata (Q24915631) · CC0 |
|---|---|
| The relief above, the entrance altitude, the section and the 3D model | Copernicus DEM GLO-30 · © DLR e.V., © Airbus Defence and Space GmbH, Copernicus/ESA |
| Climate | NASA POWER, 1991–2020 |
| Entrances, springs, sinkholes, opening hours and what is around | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
| Rivers, waterfalls, lakes, mountains, canyons, beaches and islands nearby | Coastya, 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.
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Every lake on Earth: water temperature, ice, depth and the shore.Visit mountains
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Every cave with its real depth and length: the rock above, the temperature inside all year, and how to visit.You are here
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Where the night is still dark: the sky of every place, the Milky Way month by month, the Moon, eclipses and auroras.Coming soonVisit 
viewpoints
Every viewpoint with its real 360° panorama: the peaks you can name, how far you see and where the sun sets.Coming soonVisit 
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