Deepest underwater caves

Ranked by reported measurements.

#CaveLocationMax depthSource
1Arresteliako ziloa
Also: Souffleur de Larrandaburu
Pierre Saint Martin, Pyre. Atlantiques/Navarr, France835 mCave-Exploring World Long Caves
Tertiary / aggregate source
Provided by: Die langsten Unterwasserholensysteme der Welt
2Gouffre du Petit Saint Cassien-, Alpes-Côte d'Azur, France403 mCave-Exploring World Long Caves
Tertiary / aggregate source
Provided by: Liste des cavites naturelles les plus longues de France
3Rèseau Lot du Bois - Source du pissieux-, Auvergne-Rhone-Alpes, France185 mCave-Exploring World Long Caves
Tertiary / aggregate source
Provided by: Liste des cavites naturelles les plus longues de France
4Cathedral-Falmouth SystemSuwannee, Florida, USA130.8 mCave-Exploring World Long Caves
Secondary source
Provided by: Andrew Pitkin e-mail
5Pozo AzulCovanera, Burgos, Spain126 mCave-Exploring World Long Caves
Secondary source
Provided by: Jose Luis Membrado e-mail
6Weeki Wachee SpringHernando, Florida, USA124.1 mCave-Exploring World Long Caves
Secondary source
Provided by: Andrew Pitkin e-mail
7Sistema Sac ActunQuintana Roo, Mexico119.2 mQRSS Long Underwater Caves
Secondary source
Provided by: Alvarez/Nava/Reato/Picard
8Wakulla Cave SystemLeon/Wakulla, Florida, USA106.7 mCave-Exploring World Long Caves
Secondary source
Provided by: Casey McKinlay e-mail
9Cenote GodzillaQuintana Roo, Mexico97.1 mQRSS Long Underwater Caves PDF
Secondary source
Provided by: Ternat, Coffield-Feith, Bulman, Widmann
10Sistema El PuenteQuintana Roo, Mexico90.2 mQRSS Long Underwater Caves
Secondary source
Provided by: Vanilla Sky Project

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