Picture this: a place so dark you can’t see your hand in front of your face. The ground is uneven, the air thick with dust, and a sudden collapse is always one stray vibration away. For decades, this was the reality for miners navigating natural caves or abandoned tunnels, risking life and limb to access the earth’s hidden wealth. Today, the story is changing — and it’s taking flight. From the vast chambers of natural cave systems to the tight confines of abandoned or active
