A number of people wearing safety gear slogging through the mud at night.
Various people with helmets and harnesses are shown moving through a dark cave.
People are in the dark walking around in mud with flashlight hard hats on.
Outside a group of people with helmet flashlights are walking in a mud puddle.
People with backpacks and miners' headlamps slog through mud in a dark environment.
People with headlamps walk through knee deep mud.
A group of people are wading through mud while walking in a cave.
A group of people walk on muddy ground, and one person raises her hands.
Hikers are walking around in the mud of the dark interior of a cave.
A group of people are walking through mud while wearing helmets with lights on them.