Sumida River Fireworks Festival will be held on July 27. It has about 22,765 fireworks every year. It started in 1733. Person who saw the fireworks first time is Ieyasu Tokugawa. I recommend to wear Yukata when you go to the festival. A lot of people will go to see the fireworks, because it is one of biggest fireworks festival in Tokyo. You can see wonderful fireworks. It will be very crowded and there is no space to sit, you should bring your picnic sheet. It is good to see the beautiful fireworks with sitting on the sheet.