Flooded mine
Kőbánya Mine (flooded cellars)
Cave-certified areas / one spot open to non-cave divers: operator zone [1] (The operator says most underwater areas require cave certification, while one spot is open to other divers who meet its experience rules.). These categories are the named scheme's own; they describe the training a site calls for.
A labyrinth of old limestone quarry tunnels and cellars in eastern Budapest, parts of which are flooded. Visits are organised on request by the Molnár János Cave dive centre; most underwater areas require cave certification.
Kőbánya (literally 'stone quarry') is a district of Budapest built over extensive underground limestone workings. According to the Molnár János Cave dive centre, the passages were later used as wine cellars, belonged to the Dreher brewery in the 20th century and hid an aircraft-engine factory during the Second World War.
Some rooms are flooded and are dived as an overhead environment. The operator stresses that these are flooded rooms and cellars reached by stairs rather than rail-served mine tunnels, and that it organises regular visits with details available on request.
The environment
Cold, clear water in flooded rooms and cellars cut in limestone. No temperature or depth figures are published by the operator.
For orientation, not navigation. Hollow dots are approximate.
Every fact on this page, with its source (3)
| Fact | Status | Source |
|---|---|---|
| The Molnár János Cave dive centre organises regular dives in the Kőbánya Mine, with details on request.Provider page viewed 2026-10-14; no landowner or authority statement found. | Reported | [1] |
| Most underwater sites in the Kőbánya Mine require cave certification; one spot is open to all divers who meet the centre's experience rules. | Reported | [1] |
| The workings were used as wine cellars, owned by the Dreher brewery in the 20th century and used for a hidden aircraft-engine factory in the Second World War.History as told by the operator. | Reported | [1] |
Verified: stated by an official or primary source we opened. Reported: from a secondary source only. Sources conflict: the note gives both versions. May be out of date: the newest source we found is old.
Written in our own words from the sources above. Report a correction