Italy Marco Busdraghi · CC BY 3.0
The descent
The entrance, at 6 m.
The real relief above Nereo 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.
6m
Entrance altitude
from the 30 m relief model
18°C
Inside, all year
the yearly average outside, at the entrance
188m
Rock above
the highest point within 1.5 km
Inside and outside
18 °C inside, all year.
Deep inside, a cave keeps the average temperature of the year outside: about 18 °C here, in January and in August. In August the afternoon reaches 26 °C at the entrance, 8 °C warmer than inside: take a jacket.
- 14°11°Jan
- 13°11°Feb
- 14°12°Mar
- 17°14°Apr
- 20°16°May
- 23°20°Jun
- 26°23°Jul
- 26°23°Aug
- 24°21°Sep
- 22°19°Oct
- 18°16°Nov
- 15°13°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 Italy
Nereo Cave is a cave in Italy. The entrance is at 6 m. It has the sea at its mouth.
Getting there.
- Wild cave: only with caving equipmentNo paths or lights inside. Go only with a caving club or a qualified guide.
- Algheronearest town · 13 km in a straight line
- Viewpointsnearest viewpoint · 0.4 km from the entrance
- Alghero-Fertilia Airport (AHO)nearest airport with scheduled flights · 13 km in a straight lineCar hire at AHO airport (Alghero)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.
- 11other cave entrances within 3 kmGrotta Verde, Grotta della Dragunara, Grotta della Madonnina and 8 more
- 4viewpoints within 3 kmIsola di Foradada and 3 more
- 2marked hiking routes within 3 kmTorre del Bollo, El Camí IT4TR1 El Camí Illenc: de l'Alguer a Formentera
- 6car parks within 2 km
- 1information boards and visitor centres within 3 km
- 2bus stops within 2 km
- 1campsites within 8 kmPark Paradise
- 8hotels and guesthouses within 8 kmHotel Porto Conte, Agriturismo B&B Graziano e Barbara, Baia de Conte and 5 more
- 2restaurants and cafés within 3 km
- springs within 2 km
- sinkholes within 3 km
- caving clubs and spots within 15 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
- Alghero13 km in a straight line
- Olmedo21 km in a straight line
In our other atlases
What else is around Nereo 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.
Peakyas6 mountains within 10 km
Coastya1 beaches within 3 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 | 14 | 13 | 14 | 17 | 20 | 23 | 26 | 26 | 24 | 22 | 18 | 15 |
| Afternoon | 14 | 13 | 14 | 17 | 20 | 23 | 26 | 26 | 24 | 22 | 18 | 15 |
| Night | 11 | 11 | 12 | 14 | 16 | 20 | 23 | 23 | 21 | 19 | 16 | 13 |
| Rain (mm) | 64 | 60 | 47 | 48 | 42 | 16 | 6 | 13 | 42 | 66 | 100 | 78 |
| Rainy days | 10 | 9 | 8 | 8 | 6 | 3 | 1 | 2 | 8 | 10 | 13 | 11 |
| Sun hours/day | 3.8 | 5.1 | 6.9 | 8.2 | 9.8 | 12.1 | 12.6 | 11.1 | 8.5 | 6.7 | 4.3 | 3.7 |
| Afternoon | Afternoon | Night | Rain (mm) | Sun hours/day | |
|---|---|---|---|---|---|
| Jan | 14 | 14 | 11 | 64 | 3.8 |
| Feb | 13 | 13 | 11 | 60 | 5.1 |
| Mar | 14 | 14 | 12 | 47 | 6.9 |
| Apr | 17 | 17 | 14 | 48 | 8.2 |
| May | 20 | 20 | 16 | 42 | 9.8 |
| Jun | 23 | 23 | 20 | 16 | 12.1 |
| Jul | 26 | 26 | 23 | 6 | 12.6 |
| Aug | 26 | 26 | 23 | 13 | 11.1 |
| Sep | 24 | 24 | 21 | 42 | 8.5 |
| Oct | 22 | 22 | 19 | 66 | 6.7 |
| Nov | 18 | 18 | 16 | 100 | 4.3 |
| Dec | 15 | 15 | 13 | 78 | 3.7 |
Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the altitude of the entrance (6 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 | 59% | 10% | 98% | 201% | 68% | 111% | 39% | 252% | 252% | 72% | 48% | 168% |
| 2021 | 175% | 61% | 55% | 252% | 60% | 738% | 95% | 21% | 54% | 64% | 190% | 60% |
| 2022 | 20% | 8% | 58% | 106% | 93% | 5% | 11% | 129% | 138% | 41% | 137% | 75% |
| 2023 | 170% | 80% | 65% | 61% | 114% | 182% | 11% | 108% | 23% | 47% | 177% | 240% |
| 2024 | 76% | 123% | 157% | 33% | 93% | 65% | 55% | 123% | 124% | 124% | 22% | 61% |
| 2025 | 93% | 54% | 141% | 168% | 42% | 33% | 1,645% | 532% | 215% | 185% | 231% | 224% |
130% or more: wet month 70% or less: dry month
Caves nearby.
Nereo Cave
Italy
- —Depth
- —Galleries
- 6 mEntrance altitude
- 18 °CInside, all year
Grotta di Ispinigoli
Italy · 125 km
- —Depth
- —Galleries
- 251 mEntrance altitude
- 16 °CInside, all year
Where these figures come from
| Name, type, published depth and length, visitors | Wikidata (Q3777082) · 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?
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