In eastern Japan in the cold month of February a number of nigh naked Japanese men (why can’t it be women?) gather in a cold muddy pond to wrestle and throw mud at each other. They are performing an old planting ritual. Mud is seen as a lucky symbol because the presence of it ensures a hopefully bountiful rice harvest. The participants also smear mud on the faces of the spectators to give them good luck.
How’s that for weird naked festivals from around the world.