Jaskinia Kasprowa Niżnia
Region: Western Tatras
Location: Kasprowa Valley, Tatra National Park
Length / development: ~3.0 km total cave in older PZA catalogue; underwater passages ~630 m by 2005
Underwater depth: Max sump depth ~24 m
2026 status: PERMIT / EXPEDITION
Exploration note: By 2002 Krzysztof Starnawski passed the sixth FFS sump; cumulative submerged passage became the longest then known in Poland.
KCore note: A defining Polish sump cave: the first sump is already about an hour from the entrance, then a sequence of flooded and dry sections continues.
Jaskinia Miętusia
Region: Western Tatras
Location: Miętusia Valley, Tatra National Park
Length / development: >10 km cave system; multiple submerged branches
Underwater depth: Ciasne/Wielkie Kominy connection max ~29 m; a separate deep sump was pushed to ~70 m around 2000
2026 status: PERMIT / EXPEDITION
Exploration note: Speleoklub Warszawski explored Wielkie Kominy from the 1970s; Krzysztof Starnawski, Andrzej Czubalski and Norbert Ziober made major 1990s advances. Wiktor Bolek set a Polish deep-sump benchmark here.
KCore note: Important because two vertical branches were connected underwater after decades of separate exploration.
Jaskinia Bystrej
Region: Western Tatras
Location: Bystra Valley, Tatra National Park
Length / development: ~1.48 km in 2005 PZA list
Underwater depth: Fifth sump pushed ~200 m at max ~28 m
2026 status: PERMIT / EXPEDITION
Exploration note: First four sumps known by early 1970s; Aleksiej Petrujkic died during Sump V exploration in 1987; Starnawski later resumed and reached a chamber at Sump VI.
KCore note: Low visibility and tight space; historically one of Poland's major sump sequences.
Jaskinia Wielka Śnieżna
Region: Western Tatras
Location: Czerwone Wierchy, Tatra National Park
Length / development: ~23.7 km; vertical range 824 m
Underwater depth: Several bottom and side sumps; Mysi Sump reached at least -15 m and seen continuing toward -25 m; terminal Jeziorko X ~7 m at blockage in late-1990s work
2026 status: PERMIT / EXTREME EXPEDITION
Exploration note: 1970s-80s bottom-sump work; Maciej Tomaszek and Piotr Kępkiewicz worked Jeziorko X; Wiktor Bolek explored Mysi Sump in 2003; Andrzej Stupak free-dived Syfon Krakowski in 1991.
KCore note: The cave itself is enormous; the challenge is logistics. Some sump teams have operated from bivouacs around 450-500 m below the entrance.
Śnieżna Studnia
Region: Western Tatras
Location: Czerwone Wierchy, Tatra National Park
Length / development: >12 km by late-2000s exploration reports
Underwater depth: Multiple small/deep internal sumps; exact modern underwater metrics vary
2026 status: PERMIT / EXPLORATION
Exploration note: Polish Tatra clubs repeatedly encountered and evaluated new sumps while extending deep series. Wiktor Bolek also dived here.
KCore note: Important discovery frontier because new dry exploration repeatedly produces new terminal water obstacles.
Jaskinia Zimna
Region: Western Tatras
Location: Kościeliska Valley, Tatra National Park
Length / development: Major multi-kilometre Tatra cave; underwater metrics not consistently published in current public sources
Underwater depth: Sumps present
2026 status: PERMIT / RESEARCH
Exploration note: Included among caves dived by Wiktor Bolek; long-standing Tatra exploration site.
KCore note: Keep in catalogue as historically dived; next revision should verify individual sump metrics from PZA/Jaskinie records.