This is the entrance to the world's largest cave. Descending through this dark passage takes you into the depths of it, and from this point to its far end several kilometers of rocky passages and two collapsed sinkholes line the way. In the lower right corner, you can see Erik Hinnerdal of the #SonDoong360 team member making his way down the cave.

This is the entrance to the world’s largest cave. Descending through this dark passage takes you into the depths of it, and from this point to its far end several kilometers of rocky passages and two collapsed sinkholes line the way. In the lower right corner, you can see Erik Hinnerdal of the #SonDoong360 team member making his way down the cave.