Its Huge!

Tenjin Festival is a festival held at Tenmangu Shrines (Tenjinsha) throughout Japan.
One of Japan’s three major festivals (the others are the Gion Festival in Kyoto and the Kanda Festival in Tokyo). It is also one of the three major summer festivals in Osaka, along with the Ikutama summer festival of Ikutama Shrine and the Sumiyoshi festival of Sumiyoshi Taisha Shrine. The event will be held for about one month from late June to July 25.

Fireworks Over the River!

In particular, on the night of the main shrine on the 25th, Funatogi, where many boats come and go on the Okawa River (formerly the Yodo River), are the votive fireworks.

Other Events Going On

It is also called a fire and water festival due to its splendid appearance by bonfires, lantern lights and fireworks reflected in Okawa. Other ceremonies are held such as Shinagawa Shrine and Rikutogi. 24th Kinomiya (Minomiya Festival, Soryu Shrine, Taiko Drum, Lion Dance), 25 Nihon Shrine (Hongu Festival, Spirit Transfer, Land Pass, Funato Go, Votive Fireworks).

References

In Japanese

https://osaka-info.jp/page/osakatemmangu-tenjimmatsuri

https://osakatemmangu.or.jp/saijireki/tjm/

https://osakatemmangu.or.jp/

https://osakatemmangu.or.jp/news/280/

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Photo thanks to Tomi Mäkitalo, CC BY-SA 3.0, via Wikimedia Commons

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