Molnár János Cave

📍 Budapest · Hungary Hongaarse vlag

An exceptional thermal cave system beneath the Buda Hills, near Malom Lake and the Lukács Thermal Baths.

🌍 CountryHungary
📍 CityBudapest
📌 Cave GPS47°31′04.8″N 19°02′08.7″E ↗
🅿️ Parking GPS47°31′04.7″N 19°02′09.7″E ↗
↕ Max. depthapprox. 90 m
↔ Development> 6 km
🗺️ SurveyView survey ↓

Character of Molnár János

Molnár János Cave is a flooded thermal karst cave in Budapest. Its passages were formed by underground water flows and the interaction between warmer, mineral-rich water and cooler karst water. Large chambers, branching passages and distinct water layers make the cave remarkable. It is named after the Hungarian pharmacist János Molnár, who studied the springs and dry sections in the nineteenth century.

Discovery and exploration

János Molnár investigated the cave in 1856. Underwater exploration began in the twentieth century. Major new sections were discovered from 2002 onwards. Exploration and scientific surveying continue to this day.

Bekijk deze locatie

🗺️ Molnár János cave survey

Original overview survey of the cave passages. Click to enlarge, then use the +/− buttons, mouse wheel or drag the map to inspect details. This map is for illustration only and must not be used for underwater navigation.

The supplied cave survey has been reproduced without changes (2024-02-14). Rights remain with the original creators.

ℹ️ Practical information

ParkingFree parking, included in the paid admission for cave divers.
AccessA long corridor leads from the parking area to the water. Wheelbarrows are available to transport diving equipment. A few steps lead down to the headpool.
Diving equipmentDiving equipment may be left on site throughout the diving stay.
Water temperatureApproximately 21 °C at depth; pleasantly warm.
DPVPermitted; ask the dive centre about any local conditions.
PermissionAccess by appointment only through the local cave-diving centre. An admission fee applies.

📚 Sources & attribution

The text is based on general historical and geological background information and the dive centre’s website. The photographs and survey were supplied for this website. Rights to third-party material must still be respected when publishing.

Molnár János Cave Diving Center · Hungarian nature conservation / cave register