It really is a strange phenomenon, which has no scientific explanation. From time to time, from the waters of the Mekong rivers flowing through Thailand near the border with Laos, digging balls of fire rise up and quietly disappear. The largest of these balls are the size of a basketball.
Along the Mekong has many villages, whose inhabitants comfortable with the mysterious balls. They claim that the balls have seen not only them, but their parents and grandparents. Since the cause of "shots" of the river is unknown, local nasochinyali many legends, the most popular of which states that lives at the bottom of the river and the dragon spits fire.
In late October, this place is a festival of fireballs, collecting tens of thousands of tourists.