Sistema Ox Bel Ha
Tulum, Quintana Roo, Mexico
Measurements
| Length | Max depth | Entrances | Source | Date |
|---|---|---|---|---|
| 541,791 m | 57.3 m | 160 | CINDAQ 2025 Annual Report Primary source | 2026-06-28 |
| 541,791 m | 57.3 m | Unknown | Cave-Exploring World Long Caves Secondary source Provided by: CINDAQ annual project report | 2026-04-01 |
| 496,804 m | 57.3 m | 160 | QRSS Long Underwater Caves Secondary source Provided by: CINDAQ | 2024-10-01 |