# Punkva River source exploration in Moravian Karst

> Developing situation record from CLSTR: https://clstr.news/situations/punkva-river-source-exploration-in-moravian-karst
> Updated: 2026-11-05T12:12:16.000Z. Sources: 6. Developments: 2.

Cave divers exploring the Amatérská cave in the Moravian Karst have likely located the point where the Sloupský stream and Bílá voda merge to form the Punkva River. This connection was previously unconfirmed. During the expedition, divers navigated a narrow, 50-meter passage under the Rodeo dome to link sections they have been attempting to connect since 2020.

Subsequent progress by divers Jan Sirotek and Radek Nejezchleb involved connecting Šolímova mísa and Bludiště Milana Šlechty underwater. This effort resulted in the mapping of several hundred meters of previously unknown submerged passages. To provide definitive scientific confirmation, researchers plan to conduct dye testing in consultation with experts from Charles University and intend to install measuring sensors and trackers in the cave system.

## Claims

- Divers Jan Sirotek and Radek Nejezchleb connected Šolímova mísa and Bludiště Milana Šlechty underwater. (reported by 3 sources)
- Several hundred meters of unknown submerged passages were mapped. (reported by 3 sources)
- The Hranice Abyss is the deepest flooded pit in the world. (reported by 3 sources)
- Zbrašov aragonite caves are the only accessible hydrothermal type caves in the Czech Republic. (reported by 3 sources)
- The temperature in the Zbrašov aragonite caves remains around 14 °C year-round. (reported by 3 sources)

## Timeline

### 2026-11-05: Moravian Karst divers approach Punkva river origin

Divers Jan Sirotek and Radek Nejezchleb have mapped new underwater passages in the Moravian Karst, nearing the discovery of the Punkva river's origin.

3 sources. https://clstr.news/cluster/moravian-karst-divers-approach-punkva-river-origin

### 2026-10-29: Moravian Karst cave divers likely locate Punkva River source

Cave divers in the Moravian Karst have likely found the confluence of the Sloupský stream and Bílá voda, marking the probable origin of the Punkva River.

3 sources. https://clstr.news/cluster/moravian-karst-cave-divers-likely-locate-punkva-river-source

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Cite as: Punkva River source exploration in Moravian Karst. CLSTR, https://clstr.news/situations/punkva-river-source-exploration-in-moravian-karst