| 41. | Its cave system features underground passageways and river caves filled with stalactites and stalagmites.
|
| 42. | The extensive limestone cave systems are a major area for caving in the UK.
|
| 43. | -- Scuba diving in Mexico's Noboch Nah Chich, the largest known underwater cave system.
|
| 44. | An extensive natural cave system winds through Jabal Hafeet.
|
| 45. | There are fifteen known entrances to the cave system.
|
| 46. | The cave system extends to about of accessible passages.
|
| 47. | Past the second door, they discover a cave system.
|
| 48. | The only endemic to the Gunung Sewu cave system.
|
| 49. | There is a similar cave system 20 km away.
|
| 50. | Underground is the Siebenhengste-Hohgant-H�hle, a karst cave system.
|
