The entrance to Son Doong is a wound in the earth, a gaping maw that swallows rivers and holds clouds. Descending into it feels less like entering a cave and more like entering another world.
Inside, the scale defies comprehension. The main chamber could hold a 40-story building. A jungle grows within, fed by skylights punched through the ceiling by ancient collapses. It is a reminder of how small we are, how brief.