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Cave and mine diving in Budapest

The Molnár János cave, a thermal cave in the middle of Budapest (28 °C near the top, to ~-100 m, only with an MJ Cave guide), and the flooded wells of the old quarry and beer cellars under Kőbánya.

2 sites · down to 100 m · 2 suitable for an intro team

All 2 sites

SiteMax depthTypeCertification
Kőbányai pincerendszer36 mBackmountCavern
Molnár János-barlang100 mBackmountIntro to cave

Certification requirements, configurations and trimix depths are estimates for planning. Always check them locally and dive within your training.

Practical info: rules, fills and emergency numbers

• Access: of the natural underwater caves, only the Molnár János cave is open to visiting divers, guided through MJ Cave (the only licensed operator). The spring cave in Lake Hévíz (recreational diving in the lake is prohibited), the Tapolca Lake Cave (boat trips only) and the Kossuth cave at Jósvafő (only with permission from Aggtelek National Park) are for permitted research teams only. • Paperwork for the Molnár János cave: certification cards (cave, nitrox/trimix, CCR unit, drysuit, DPV), cave-diving insurance (e.g. DAN) and a medical certificate from a physician. Book by email (info@mjcave.hu), well in advance. • Kőbánya cellars: guided dives through Titán Búvár (TBK Divers), MJ Cave, Hidroszféra, Búvár-ABC or BornToDive; the Park well is also open to OWD/AOWD, the other three wells need a cave card. • Water: Molnár János year-round 28 °C down to -10 m and ~18–20 °C deeper (drysuit mandatory outside zone 1). Kőbánya 8–14 °C, air in the mine ~8 °C. • Gas: MJ Cave fills air and EAN32 and charges oxygen and helium per litre (trimix blending); sofnolime €10/kg, rental doubles €12 and S80 €6 plus fills, scooter €30 per dive. Titán Búvár rents filled twinsets and EAN32 stages. • Emergency: 112. Hyperbaric chamber: Hiperbárikus Oxigénterápiás Központ at Vaszary Kolos Kórház, Petőfi Sándor u. 26–28, 2500 Esztergom (building 3/A; +36 33 542 387, hospital +36 33 542 300, hyperbar@vaszary.hu; ~1 h drive). Treats diving injuries; 24/7 availability is not published — call 112 first. DAN Europe +39 06 4211 5685. • Distance: Molnár János – Kőbánya ~20–30 min by car (estimate). • Rest day: Budapest's thermal baths (the Lukács bath is right by the cave), a dry tour of the Kőbánya cellars, or the boat trip through the Tapolca Lake Cave (~2 h drive).

Plan a cave diving trip to Budapest

Enter your team, with certifications, gas and configurations, and see right away which caves fit. With driving times from your stay, fill stations and an AI instructor who thinks along.

Start planning

Compiled from web research (MJ Cave: website, 2016 rules and Aug 2026 price list; Titán Búvár, Hidroszféra, Búvár-ABC, BornToDive, Aquanauta; Wikipedia; Scuba Diving 2017, Underwater360 2018, Index.hu 2011 and 2022, Honvédelem.hu 2021; Balaton Uplands National Park, Bükk National Park; Vaszary Kolos Kórház Esztergom; Sept 2026). Pins from Wikipedia. ~ = estimate. Rules change — check locally.