|
|
|
Panoramic view of the Big Room in Carlsbad Caverns, New Mexico.
|
Light spills into the twilight zone of a partially collapsed lava tube.
|
|
|
|
|
A caver examines her surroundings, lit entirely by artificial lights.
|
A deep turquoise pool of light at the end of a narrow passage beckons explorers.
|
Looking into the immense Sumeca Jama from Tiha Jama in the Škocjan cave, Slovenia.
|
|
|
|
|
The Cerkvenik Most spans the Reka river gorge 47m above the riverbed in Škocjan cave, Slovenia.
|
Looking back up towards the Tiha jama from the main gorge in Škocjan cave, Slovenia.
|
Schmidl Hall, near the natural river entry to Škocjan cave, Slovenia.
|
