1) Atmospheric optical phenomena
Found on
https://www.crosswordclues.com/clue/shiranui
[optical phenomenon] ==Summary== Several kilometers from the beach in the open sea, first, one or two called `oyabi` (親火) would appear. These would split off to the left and right and multiply, and in the end, several hundred to several thousand fires would be lined up in a crowd. It is said that they would even stretch to be 4-8 kilome...
Found on
http://en.wikipedia.org/wiki/Shiranui_(optical_phenomenon)
No exact match found.
