Bulgaria 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
377 metres down, to scale.
The real relief above Raychova dupka, measured on the Copernicus model every 30 m, and the cave going down at the same vertical scale.
Eiffel Tower (330 m) would fit upside down 1.1 times.
The depth is the one published by those who explored it; the shape of the galleries is a sketch, not a survey.
377m
Depth
published (Wikidata)
1.5km
Galleries
surveyed length (Wikidata)
1,400m
Entrance altitude
published (Wikidata)
5°C
Inside, all year
the yearly average outside, at the entrance
218m
Rock above
the highest point within 1.5 km
Inside and outside
5 °C inside, all year.
Deep inside, a cave keeps the average temperature of the year outside: about 5 °C here, in January and in August. In August the afternoon reaches 23 °C at the entrance, 18 °C warmer than inside: take a jacket. The wettest months are from May to July: water rises fast underground, so never go in without a guide after heavy rain.
- -3°-11°Jan
- 0°-10°Feb
- 5°-6°Mar
- 10°-1°Apr
- 16°4°May
- 20°8°Jun
- 23°10°Jul
- 23°10°Aug
- 18°6°Sep
- 12°0°Oct
- 5°-4°Nov
- -1°-9°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 Bulgaria
Raychova dupka is a cave in Bulgaria. It goes down 377 m below the entrance and has 1.5 km of surveyed galleries. The entrance is at 1,400 m. It lies within Steneto Biosphere Reserve.
Getting there.
- Wild cave: only with caving equipmentNo paths or lights inside. Go only with a caving club or a qualified guide.
- Troyannearest town · 14 km in a straight line
- Viewpointsnearest viewpoint · 2.2 km from the entrance
- Plovdiv International Airport (PDV)nearest airport with scheduled flights · 79 km in a straight lineCar hire at PDV airport (Plovdiv)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.
- 2other cave entrances within 3 kmРайчова дупка, Куманица
- 6springs within 2 kmЖеравица and 5 more
- 2viewpoints within 3 km
- 5marked hiking routes within 3 kmПешеходен маршрут Ком - Емине (част от Е3), СтаРа 100х24, с. Черни Осъм - х. Чучул and 2 more
- 5named waterfalls within 4 kmКастрак дере (долен), Червената скала (горен), Кастрак дере (горен) and 2 more
- 1campsites within 8 kmОрейте
- 23hotels and guesthouses within 8 kmКИП Нешковци, х.Амбарица, х. Орлово гнездо and 20 more
- sinkholes within 3 km
- caving clubs and spots within 15 km
- climbing crags within 3 km
- car parks within 2 km
- information boards and visitor centres within 3 km
- bus stops within 2 km
- restaurants and cafés within 3 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
- Troyan14 km in a straight line
- Karlovo18 km in a straight line
- Klisura21 km in a straight line
- Apriltsi21 km in a straight line
In our other atlases
What else is around Raychova dupka.
The river at the entrance, the waterfalls, the lakes, the mountains and volcanoes above, the canyons, beaches and islands nearby — from our other atlases.
Peakyas3 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 | -3 | 0 | 5 | 10 | 16 | 20 | 23 | 23 | 18 | 12 | 5 | -1 |
| Afternoon | -3 | 0 | 5 | 10 | 16 | 20 | 23 | 23 | 18 | 12 | 5 | -1 |
| Night | -11 | -10 | -6 | -1 | 4 | 8 | 10 | 10 | 6 | 0 | -4 | -9 |
| Rain (mm) | 44 | 42 | 51 | 52 | 89 | 90 | 81 | 54 | 57 | 56 | 36 | 46 |
| Rainy days | 9 | 9 | 11 | 11 | 15 | 14 | 11 | 8 | 8 | 8 | 7 | 10 |
| Sun hours/day | 2.8 | 4.0 | 5.2 | 7.0 | 8.3 | 9.4 | 10.0 | 9.4 | 7.1 | 5.0 | 2.8 | 2.4 |
| Snow on the ground (cm) | 16 | 14 | 9 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 5 | 14 |
| Afternoon | Afternoon | Night | Rain (mm) | Sun hours/day | |
|---|---|---|---|---|---|
| Jan | -3 | -3 | -11 | 44 | 2.8 |
| Feb | 0 | 0 | -10 | 42 | 4.0 |
| Mar | 5 | 5 | -6 | 51 | 5.2 |
| Apr | 10 | 10 | -1 | 52 | 7.0 |
| May | 16 | 16 | 4 | 89 | 8.3 |
| Jun | 20 | 20 | 8 | 90 | 9.4 |
| Jul | 23 | 23 | 10 | 81 | 10.0 |
| Aug | 23 | 23 | 10 | 54 | 9.4 |
| Sep | 18 | 18 | 6 | 57 | 7.1 |
| Oct | 12 | 12 | 0 | 56 | 5.0 |
| Nov | 5 | 5 | -4 | 36 | 2.8 |
| Dec | -1 | -1 | -9 | 46 | 2.4 |
Averages 1991–2020 (NASA POWER) for a cell about 55 km wide, brought to the altitude of the entrance (1,400 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 | 31% | 170% | 147% | 52% | 98% | 85% | 103% | 106% | 38% | 155% | 66% | 109% |
| 2021 | 221% | 52% | 175% | 130% | 80% | 92% | 37% | 70% | 43% | 176% | 90% | 232% |
| 2022 | 64% | 96% | 43% | 138% | 39% | 92% | 69% | 114% | 111% | 21% | 129% | 75% |
| 2023 | 157% | 68% | 59% | 151% | 124% | 136% | 46% | 55% | 63% | 8% | 312% | 80% |
| 2024 | 82% | 38% | 86% | 95% | 111% | 52% | 47% | 32% | 80% | 36% | 117% | 230% |
| 2025 | 15% | 33% | 73% | 110% | 117% | 21% | 30% | 48% | 23% | 280% | 211% | 109% |
130% or more: wet month 70% or less: dry month
Caves nearby.
Raychova dupka
Bulgaria
- 377 mDepth
- 1.5 kmGalleries
- 1,400 mEntrance altitude
- 5 °CInside, all year
Saeva dupka cave
Bulgaria · 51 km
- 40 mDepth
- 0.2 kmGalleries
- 520 mEntrance altitude
- 11 °CInside, all year
Devetashka cave
Bulgaria · 54 km
- 96 mDepth
- 2.4 kmGalleries
- 126 mEntrance altitude
- 13 °CInside, all year
Bacho Kiro cave
Bulgaria · 64 km
- —Depth
- 3.6 kmGalleries
- 504 mEntrance altitude
- 11 °CInside, all year
Where these figures come from
| Name, type, published depth and length, visitors | Wikidata (Q12292106) · 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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