Caver was overdue beyond a flooded tunnel more than half a mile underground.

7 Cave Diving Disasters in 5 Minutes | The World's Deadliest Underwater Caves

She found cave passages where other divers had failed.

Lost in Moscow Caverns: Tragic Tale of 6 Spelunkers

He wrote the book on how to survive a cave dive.

Cave Disasters That Will Trigger Your Claustrophobia #claustrophobia

What Happened to the Miners After 2 Weeks Underground #survival #shorts

Diver Trapped in the Depths of the Cave. #bushman #explore #fyp #disaster #curiosity

Terrifying Cave Disasters—and One Incredible Survival

Minecraft Caves: Don't Look Behind You!

Tragic cave incident 😱