Italy Sentinel-2 cloudless 2016 by EOX IT Services GmbH (contains modified Copernicus Sentinel data), CC BY 4.0, with relief shading from Copernicus WorldDEM-30
The descent
The entrance, at 189 m.
The real relief above Abisso Bonetti, 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.
189m
Entrance altitude
from the 30 m relief model
13°C
Inside, all year
the yearly average outside, at the entrance
45m
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 July the afternoon reaches 29 °C at the entrance, 16 °C warmer than inside: take a jacket. The best months to escape the heat are from July to August. The wettest months are in November: water rises fast underground, so never go in without a guide after heavy rain.
- 5°-1°Jan
- 7°0°Feb
- 12°3°Mar
- 17°7°Apr
- 21°12°May
- 26°16°Jun
- 29°18°Jul
- 28°18°Aug
- 23°13°Sep
- 17°9°Oct
- 11°5°Nov
- 6°0°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.
Karst cave in northeastern Italy
Abisso Bonetti is a cave in Italy. The entrance is at 189 m. It has an underground lake.
Getting there.
- Wild cave: only with caving equipmentNo paths or lights inside. Go only with a caving club or a qualified guide.
- Doberdò del Lagonearest town · 3.4 km in a straight line
- Viewpointsnearest viewpoint · 0.6 km from the entrance
- Trieste Airport (TRS)nearest airport with scheduled flights · 9 km in a straight lineCar hire at TRS airport (Ronchi dei Legionari/Trieste)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.
- 69other cave entrances within 3 kmAbisso Samar di Riky / Brezno Rikijev Samar, Grotta 1° a N della Marisa II, Grotta 2ª di Bonetti (ingresso 1) and 66 more
- 60sinkholes within 3 kmHindenburg (Alfred), Neger, Flieger and 57 more
- 1caving clubs and spots within 15 kmJamarski klub Temnica
- 8viewpoints within 3 kmKremenjak, Razgledni stolp, Lago di Doberdò / Doberdobsko jezero and 5 more
- 19marked hiking routes within 3 kmSentiero Abramo Schmid, Alta via del Carso, Sentiero dei castellieri and 16 more
- 1climbing crags within 3 kmCastel Cadorna / Casa Cadorna
- 6car parks within 2 km
- 29information boards and visitor centres within 3 km
- 8bus stops within 2 km
- 8campsites within 8 kmMarina Julia Family Camping Village, Camping Village Mare Pineta, Area di Sosta Camper Gradisca d’Isonzo and 5 more
- 65hotels and guesthouses within 8 kmHotel al Ponte, Albergo Lussino, Hotel Dante and 62 more
- 8restaurants and cafés within 3 km
- springs within 2 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
- Doberdò del Lago3.4 km in a straight line
- Monfalcone4.9 km in a straight line
- Panzano5.6 km in a straight line
- Ronchi dei Legionari6.0 km in a straight line
- Duino6.9 km in a straight line
- Staranzano7.0 km in a straight line
- Miren7.2 km in a straight line
- Bilje7.9 km in a straight line
In our other atlases
What else is around Abisso Bonetti.
The river at the entrance, the waterfalls, the lakes, the mountains and volcanoes above, the canyons, beaches and islands nearby — from our other atlases.
Peakyas11 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 | 5 | 7 | 12 | 17 | 21 | 26 | 29 | 28 | 23 | 17 | 11 | 6 |
| Afternoon | 5 | 7 | 12 | 17 | 21 | 26 | 29 | 28 | 23 | 17 | 11 | 6 |
| Night | -1 | 0 | 3 | 7 | 12 | 16 | 18 | 18 | 13 | 9 | 5 | 0 |
| Rain (mm) | 65 | 76 | 77 | 75 | 96 | 86 | 81 | 95 | 116 | 111 | 121 | 96 |
| Rainy days | 8 | 8 | 9 | 12 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 10 |
| Sun hours/day | 3.8 | 4.6 | 5.6 | 5.7 | 6.2 | 7.4 | 8.2 | 7.3 | 5.9 | 4.6 | 3.1 | 3.4 |
| Snow on the ground (cm) | 14 | 14 | 7 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 5 | 12 |
| Afternoon | Afternoon | Night | Rain (mm) | Sun hours/day | |
|---|---|---|---|---|---|
| Jan | 5 | 5 | -1 | 65 | 3.8 |
| Feb | 7 | 7 | 0 | 76 | 4.6 |
| Mar | 12 | 12 | 3 | 77 | 5.6 |
| Apr | 17 | 17 | 7 | 75 | 5.7 |
| May | 21 | 21 | 12 | 96 | 6.2 |
| Jun | 26 | 26 | 16 | 86 | 7.4 |
| Jul | 29 | 29 | 18 | 81 | 8.2 |
| Aug | 28 | 28 | 18 | 95 | 7.3 |
| Sep | 23 | 23 | 13 | 116 | 5.9 |
| Oct | 17 | 17 | 9 | 111 | 4.6 |
| Nov | 11 | 11 | 5 | 121 | 3.1 |
| Dec | 6 | 6 | 0 | 96 | 3.4 |
Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the altitude of the entrance (189 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 | 35% | 57% | 142% | 37% | 96% | 199% | 110% | 176% | 108% | 217% | 30% | 284% |
| 2021 | 244% | 131% | 44% | 141% | 260% | 40% | 152% | 113% | 59% | 73% | 136% | 105% |
| 2022 | 74% | 64% | 51% | 113% | 70% | 67% | 93% | 93% | 268% | 52% | 105% | 198% |
| 2023 | 213% | 28% | 112% | 144% | 160% | 142% | 257% | 253% | 71% | 254% | 162% | 166% |
| 2024 | 199% | 179% | 232% | 143% | 237% | 147% | 118% | 74% | 219% | 221% | 49% | 55% |
| 2025 | 221% | 83% | 219% | 119% | 142% | 45% | 201% | 120% | 146% | 148% | 114% | 27% |
130% or more: wet month 70% or less: dry month
Caves nearby.
Abisso Bonetti
Italy
- —Depth
- —Galleries
- 189 mEntrance altitude
- 13 °CInside, all year
Škocjan Caves
Slovenia · 37 km
- —Depth
- 6.2 kmGalleries
- 378 mEntrance altitude
- 12 °CInside, all year
Postojna Cave
Slovenia · 49 km
- —Depth
- —Galleries
- 544 mEntrance altitude
- 10 °CInside, all year
Where these figures come from
| Name, type, published depth and length, visitors | Wikidata (Q36492835) · 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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