Tapolca cave system
The 2025 research report does not state the system's length; no new passage was found in 2025.
A cave system at Tapolca that includes the Hospital Cave and the Lake Cave. Diving is research-only under a Balaton-Felvidék National Park Directorate permit valid to 2027.
The Tapolca cave system (cadastre number 4450-1) at Tapolca includes the Tapolcai Kórház-barlang (Hospital Cave) and the Tapolcai-tavasbarlang (Lake Cave), which has a section used for boating.
Underwater research is carried out by the Barlangkutató Búvár és Természetvédő Társaság under a permit from the Balaton-Felvidék National Park Directorate. The team's report for the period from 8 September to 31 December 2025 records only two dives: because the cave had not been dived for a long time, they checked the condition of the fixed line, began repairing and replacing lines and markers, and cleaned lamps and removed litter in the boating section. They planned to continue water-quality research with the Budapest University of Technology and Economics in 2026.
No surveyed length or depth is given in the report, and no recreational diving access is published.
Survey and exploration history
| 2025 | Research divers make two dives to check and begin replacing the fixed lines and markers. [1] |
Entrances and dive sites
The report covers the Hospital Cave and Lake Cave sections; no public diving entrance is published.
No individual entrances are listed for this system yet.
Every fact on this page, with its source (4)
| Fact | Status | Source |
|---|---|---|
| Research in the Tapolca cave system is permitted by the Balaton-Felvidék National Park Directorate under permit 3370/2025, valid until 2027-12-31, held by Attila Hosszú / Barlangkutató Búvár és Természetvédő Társaság. | Verified | [1] |
| Only two dives were made in 2025, mainly to check the fixed line; line and marker repair began, lamps were cleaned and litter removed in the boating section, and no new passage was found.Reporting period 2025-09-08 to 2025-12-31. | Verified | [1] |
| The research covered the Tapolcai Kórház-barlang and Tapolcai-tavasbarlang sections of the system (cadastre number 4450-1). | Verified | [1] |
| Diving is conducted under the national park research permit 3370/2025; the report describes no recreational access. | Verified | [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 May be out of date: the newest source we found is old.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