Spain Ander-pirineos · CC BY-SA 3.0
The descent
The entrance, at 364 m.
The real relief above Baltzola 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.
364m
Entrance altitude
from the 30 m relief model
13°C
Inside, all year
the yearly average outside, at the entrance
235m
Rock above
the highest point within 1.5 km
Inside and outside
13 °C inside, all year.
Deep inside, a cave keeps the average temperature of the year outside: about 13 °C here, in January and in August. In August the afternoon reaches 25 °C at the entrance, 13 °C warmer than inside: take a jacket.
- 10°3°Jan
- 10°3°Feb
- 14°5°Mar
- 16°7°Apr
- 19°10°May
- 23°13°Jun
- 25°15°Jul
- 25°15°Aug
- 23°13°Sep
- 19°10°Oct
- 13°6°Nov
- 10°4°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.
Cave in Dima, Basque Country, Spain
Baltzola cave is a cave in Spain. The entrance is at 364 m.
Getting there.
- Wild cave: only with caving equipmentNo paths or lights inside. Go only with a caving club or a qualified guide.
- Zeanurinearest town · 3.1 km in a straight line
- Bilbao Airport (BIO)nearest airport with scheduled flights · 25 km in a straight lineCar hire at BIO airport (Bilbao)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.
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.
- 6other cave entrances within 3 kmBaltzola: ekialdeko sarrera, Abaro tunela: irteera, Axlor and 3 more
- 1springs within 2 kmLontzo
- 5marked hiking routes within 3 kmBaltzola, bide mitologikoa, Ikazkinen bidea, Legarmendiko ibilbide handia and 2 more
- 2climbing crags within 3 kmEscuela de escalada de Indusi, Baltzola
- 4car parks within 2 km
- 1information boards and visitor centres within 3 km
- 14bus stops within 2 km
- 1campsites within 8 kmÁrea de autocaravanas Zeanuri
- 14hotels and guesthouses within 8 kmUrkiola Hotela, Hostal Juego de Bolos, Albergue Mandoia and 11 more
- 3restaurants and cafés within 3 km
- sinkholes within 3 km
- caving clubs and spots within 15 km
- viewpoints 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
- Zeanuri3.1 km in a straight line
- Mañaria5.6 km in a straight line
- Izurtza8.2 km in a straight line
- Durango9.3 km in a straight line
- Amorebieta10 km in a straight line
- Berriz14 km in a straight line
- Elorrio15 km in a straight line
- Galdakao15 km in a straight line
In our other atlases
What else is around Baltzola 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.
Peakyas21 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 | 10 | 10 | 14 | 16 | 19 | 23 | 25 | 25 | 23 | 19 | 13 | 10 |
| Afternoon | 10 | 10 | 14 | 16 | 19 | 23 | 25 | 25 | 23 | 19 | 13 | 10 |
| Night | 3 | 3 | 5 | 7 | 10 | 13 | 15 | 15 | 13 | 10 | 6 | 4 |
| Rain (mm) | 106 | 88 | 84 | 77 | 72 | 61 | 42 | 42 | 56 | 82 | 125 | 97 |
| Rainy days | 14 | 12 | 12 | 14 | 13 | 11 | 10 | 10 | 11 | 13 | 15 | 13 |
| Sun hours/day | 2.3 | 3.7 | 5.2 | 6.2 | 7.2 | 7.7 | 8.0 | 7.5 | 6.8 | 4.7 | 2.9 | 2.6 |
| Snow on the ground (cm) | 4 | 5 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 |
| Afternoon | Afternoon | Night | Rain (mm) | Sun hours/day | |
|---|---|---|---|---|---|
| Jan | 10 | 10 | 3 | 106 | 2.3 |
| Feb | 10 | 10 | 3 | 88 | 3.7 |
| Mar | 14 | 14 | 5 | 84 | 5.2 |
| Apr | 16 | 16 | 7 | 77 | 6.2 |
| May | 19 | 19 | 10 | 72 | 7.2 |
| Jun | 23 | 23 | 13 | 61 | 7.7 |
| Jul | 25 | 25 | 15 | 42 | 8.0 |
| Aug | 25 | 25 | 15 | 42 | 7.5 |
| Sep | 23 | 23 | 13 | 56 | 6.8 |
| Oct | 19 | 19 | 10 | 82 | 4.7 |
| Nov | 13 | 13 | 6 | 125 | 2.9 |
| Dec | 10 | 10 | 4 | 97 | 2.6 |
Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the altitude of the entrance (364 m) with the standard lapse rate. Not a forecast.
Photographs
Inside and around.
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 | 42% | 28% | 156% | 125% | 112% | 140% | 63% | 134% | 149% | 214% | 33% | 256% |
| 2021 | 128% | 98% | 32% | 67% | 71% | 182% | 63% | 49% | 153% | 63% | 173% | 187% |
| 2022 | 64% | 25% | 102% | 112% | 30% | 62% | 22% | 76% | 129% | 35% | 107% | 75% |
| 2023 | 164% | 53% | 30% | 42% | 74% | 127% | 58% | 99% | 150% | 88% | 110% | 84% |
| 2024 | 69% | 133% | 86% | 44% | 118% | 112% | 50% | 181% | 228% | 192% | 55% | 108% |
| 2025 | 67% | 52% | 124% | 82% | 94% | 85% | 86% | 102% | 85% | 42% | 116% | 77% |
130% or more: wet month 70% or less: dry month
Caves nearby.
Baltzola cave
Spain
- —Depth
- —Galleries
- 364 mEntrance altitude
- 13 °CInside, all year
Santimamiñe kobazuloa
Spain · 26 km
- —Depth
- —Galleries
- 164 mEntrance altitude
- 14 °CInside, all year
Cueva de Askondo
Spain · 5 km
- —Depth
- —Galleries
- 314 mEntrance altitude
- 13 °CInside, all year
Where these figures come from
| Name, type, published depth and length, visitors | Wikidata (Q12254744) · 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 river from source to sea: the journey, the flow and the basin in numbers.Visit 
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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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forests
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