| 41. | -- Mexico, scuba diving into Nohoch Nah Chich, the world's largest underwater cave system.
|
| 42. | Calcite rafts are most commonly formed in limestone cave systems.
|
| 43. | But most of the cave systems were much less extensive.
|
| 44. | There is a similar cave system 20 km away.
|
| 45. | The only endemic to the Gunung Sewu cave system.
|
| 46. | Past the second door, they discover a cave system.
|
| 47. | The cave system extends to about of accessible passages.
|
| 48. | There are fifteen known entrances to the cave system.
|
| 49. | An extensive natural cave system winds through Jabal Hafeet.
|
| 50. | The total length of the cave system exceeds.
|
