Glacier blue

An adult mountaineer with a red backpack walks across the floor of a huge translucent blue ice cavern. The camera tracks low behind an ice ridge and reveals the tiny figure beneath towering rippled walls lit by a shaft of sunlight. Fine ice dust falls through the light; deep sapphire shadows contrast with the red backpack. Large-format expedition-film realism, a single smooth reveal, footsteps and resonant wind. No text.