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Caves of Aggtelek Karst and Slovak Karst

Nature Reserve

The cross‑border Aggtelek and Slovak Karst contain extensive dripstone caves, karst ridges and subterranean passages; guided tours reveal stalactite formations, and hikers use surface trails through mixed forests.

Caves of Aggtelek Karst and Slovak Karst BudapestEgerLake BalatonPécsCaves of Aggtelek Karst and Slovak Karst
In this guide

Caves of Aggtelek Karst and Slovak Karst essentials

Address: Aggtelek Karst region (Aggtelek, Hungary) and Slovak Karst (Slovakia) - border-spanning cave complexes; main visitor centre: Aggtelek (Hungary)
Website: agp.hu (Aggtelek National Park)
Hours: Visitor centre and cave tours vary seasonally; most operate daily in peak season and with reduced hours in winter.
Admission: Cave tours priced per site; Aggtelek National Park visitor centre fees vary. Typical guided cave tours €6-€15.
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About Caves of Aggtelek Karst and Slovak Karst

The Caves of Aggtelek Karst and Slovak Karst form a transboundary karst landscape straddling northeastern Hungary and southern Slovakia, notable for an extensive cave network and outstanding speleothems. The property includes major cave systems, wide karst plateaus and surface karst features forming one of the most important karst areas in Europe.

Prominent features include the long Baradla-Domica cave system with kilometres of galleries and rich dripstone decoration, and caves such as the Ochtinska1 Aragonite Cave known for rare aragonite formations. The subterranean environments show a variety of speleothem types and cave morphology created by dissolution of limestone and complex hydrogeological processes.

Cave exploration and mapping have been ongoing since the 19th century; many caves were developed as show caves in the 19th and 20th centuries while others remain scientifically important and protected. The area has been managed cooperatively across the two countries to conserve geological, hydrological and biological cave values.

Geographically the site covers karst plateaus and valleys in the Carpathian foreland north of the Hungarian plain and south of the Slovak highlands, with access from nearby towns such as Aggtelek in Hungary and Roa0žnava in Slovakia.

  • Transboundary karst region: The property spans the border between northeastern Hungary and southern Slovakia and includes extensive karst plateaus with over a thousand mapped caves in the wider region.
  • Visitor access: Several caves offer guided show-cave routes, but many significant cave systems are protected and accessible only with permits or on scientific tours.

What to See#

  • Baradla-Domica cave system: Baradla-Domica is the largest component of the transboundary cave system, with show-cave passages extending for over 24 kilometres and spectacular dripstone galleries.
  • Ochtinsa0kf6c4 Aragonite Cave: Ochtinsa0kf6c4 Aragonite Cave (Slovakia) is noted for rare aragonite crystal formations and small, highly decorated chambers open to controlled visitor access.
Things to Do
When to Go

Best Time to Visit Caves of Aggtelek Karst and Slovak Karst

Cave tours run year-round but peak in summer; spring and autumn balance milder surface weather with quieter caves.

Summer (Jun-Aug)
June-August · Surface 20-30°C, caves ~10-12°C
Peak tourist season on the plateau and in cave tour slots; good for combining hiking and caving.
Spring/Autumn (Apr-May, Sep-Oct)
Apr-May, Sep-Oct · Surface 10-22°C
Fewer visitors; comfortable for walking the karst landscape and visiting villages.

Weather & Climate near Caves of Aggtelek Karst and Slovak Karst

Climate

Caves of Aggtelek Karst and Slovak Karst's climate is classified as Warm-Summer Continental - Warm-Summer Continental climate with mild summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -6°C to 24°C. Moderate rainfall (562 mm/year).

Air Quality: AQI 54 Moderate
Best Time to Visit
AugustJulySeptember
Temperature & Rainfall
Temperature Range
38°
Warmest Month
-22°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor -6° - 0° -6° 25 mm overcast 92% 2.1 m/s 0.1 low 8.6h
February Poor -5° - 3° -4° 24 mm overcast 87% 2.2 m/s 0.2 low 10.0h
March Acceptable -1° - 8° 1° 26 mm partly cloudy 77% 2.6 m/s 0.4 low 11.7h
April Acceptable 3° - 14° 7° 47 mm partly cloudy 70% 2.7 m/s 0.8 moderate 13.5h
May Good 8° - 19° 13° 68 mm partly cloudy 71% 2.5 m/s 1.2 high 15.0h
June Good 11° - 22° 16° 81 mm partly cloudy 70% 2.3 m/s 1.5 high 15.8h
July Very Good 13° - 24° 18° 69 mm partly cloudy 67% 2.3 m/s 1.5 high 15.5h
August Excellent 12° - 24° 18° 63 mm partly cloudy 65% 2.1 m/s 1.3 high 14.1h
September Good 8° - 19° 14° 48 mm partly cloudy 70% 2.2 m/s 0.8 moderate 12.4h
October Good 4° - 13° 7° 40 mm partly cloudy 80% 2.1 m/s 0.4 low 10.7h
November Poor -1° - 6° 0° 41 mm overcast 89% 2.0 m/s 0.1 low 9.1h
December Poor -4° - 1° -4° 30 mm overcast 92% 2.0 m/s 0.1 low 8.2h
Getting There & Around

How to Get to Caves of Aggtelek Karst and Slovak Karst

Drive: Aggtelek is about a 3-hour drive from Budapest via Road 3 and 26. Train connections exist to nearby towns (e.g., Kazincbarcika) with local buses to Aggtelek; Slovak Karst sites are accessed from Rožňava or Košice on the Slovak side.

Tips for Visiting Caves of Aggtelek Karst and Slovak Karst

  • Wear sturdy shoes and a warm layer; cave interiors are cool and humid year-round.
  • Reserve guided tours in advance during summer and holiday weekends - the Baradla-Domica system has limited capacity.
  • Combine a cave visit with a walk in the surrounding karst forests; the surface landscape hides sinkholes and dolines that look otherworldly.