It took his classmates about 30 minutes to scramble out of the cave to call for help, launching an hourslong rescue, the ...

Lava tube caves take you deep into ancient volcanoes, where molten rock once carved tunnels in the earth. These underground ...

Late at night on Jan. 18, 37-year-old Lorena Garcia Martin set out on a cave diving trip with her diving partner. The pair planned to explore the Cueva del Agua ...