You are on the 9th level of the 15 stages of Mount Fuji. You're on the environment stage now, so please don't litter Mount Fuji while hiking your way to the top. This is an avalanche.
Avalanches happen when big patches of snow slide down the side of a mountain.
During the winter season avalanches can occur in different parts of Japan. Mount Fuji is only open to professional hikers in the winter months because no one can know when a life threatening avalanche will occur. A. A man that cleans disposable wooden chopsticks and resells them. The garbage day where we set our glass bottles and aluminium cans outside to be picked up. The truck that comes around and gives us a roll of toilet paper in exchange for our old newspapers.