| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | subterranean river | Philippines | Subterranean rivers are sometimes considered sacred or spiritual places, with rituals and ceremonies conducted near their entrances. | 1 |
| 2 | subterranean river | Philippines | Subterranean rivers, like the Puerto Princesa Underground River, are celebrated as natural wonders and tourist attractions, drawing visitors from around the world. | 1 |