Walking through a tunnel that has been carved through snow using a flashlight to see.
People in an underground cave exploring with flashlights in a group.
The light of a flashlight bounces around all the surfaces of the stone wall and on the shirt and pants of a fellow spelunker in a cave.
A group of men with flashlights explore a dark tunnel.
Few people climbing and assessing a cave path with the aid of the bright light while a voice speaks.
People are walking and talking in a dark, wet cave.
A man is crawling through a mining tunnel in the dark.
People seem to be exploring an under ground tunnel or a cave system.
A person in a cave moves aside as a light illuminates the cave,.
Cave explorers with head lamps work their way through a cave.