Underwater Cave Reports
Survey reports, sources, and exploration updates for underwater cave systems. Browse reported length and depth data, search by system or location, compare source details, and submit newer reports or exploration news.
Length reports
Underwater cave systems with reported survey lengths.
| # | Cave | Location | Length | Source |
|---|---|---|---|---|
| 1 | Sistema Ox Bel Ha | Tulum, Quintana Roo, Mexico | 541,791 m | CINDAQ 2025 Annual Report Primary source |
| 2 | Sistema Sac Actun | Quintana Roo, Mexico | 379,569 m | QRSS Long Underwater Caves Secondary source Provided by: Alvarez/Nava/Reato/Picard |
| 3 | Sistema K'oox Baal | Quintana Roo, Mexico | 123,000 m | Facebook Report Primary source Provided by: Robbie Schmittner |
| 4 | Wakulla Cave System | Leon/Wakulla, Florida, USA | 72,171 m | Cave-Exploring World Long Caves Secondary source Provided by: Casey McKinlay e-mail |
| 5 | Sistema Xunaan Ha | Quintana Roo, Mexico | 57,344 m | QRSS Long Underwater Caves Secondary source Provided by: Quiet Diver Team |
| 6 | Sistema Toh Ha | Tulum, Quintana Roo, Mexico | 47,746 m | QRSS Long Underwater Caves Secondary source Provided by: Berni/Sieff |
| 7 | Sistema Zapote-Camilo Also: Cenote Zapote, Sistema Camilo | Quintana Roo, Mexico | 40,169 m | QRSS Long Underwater Caves Secondary source Provided by: Coffield-Feith/ Bulman |
| 8 | Sistema Nohoch Kai | Tulum, Quintana Roo, Mexico | 33,505 m | QRSS Long Underwater Caves Secondary source Provided by: Proyecto Nohoch Kai/ Schmittner/ Gugermeier |
| 9 | Sistema Caterpillar | Quintana Roo, Mexico | 28,253 m | QRSS Long Underwater Caves Secondary source Provided by: DRSS/QDT |
| 10 | Sistema Sand Crack | Tulum, Quintana Roo, Mexico | 26,746 m | QRSS Long Underwater Caves Secondary source Provided by: Quiet Diver Team/DRSS |