解説3 shaku fireworks - the largest fireworks in Kanto region (7713603944).jpg
I've visited fireworks festival in Koga, Ibaraki, Japan. I've been wanted to visit the festival for more than 2 years, becuase it has one of largest fireworks in Kanto region and I hear the festival is amazing. I finally visit there yesterday and I found it amazing. Compare the river on the bottom to get idea how large this fireworks is! The river is not a small one, but very large. The width of the river is about 100m.
According to the official web site of the fireworks festival, the diameter of the fireworks is about 650m and is larger than Tokyo Sky Tree.