Okawa River (between Kitahama and Temmabashi), Osaka

Fifty-thousand LED “prayer stars” will be floated down the Okawa River in Nakanoshima Park located in the heart of Osaka. Now in its ninth year, this summertime spectacle creates a luminescent sea of electric blue representing the Milky Way, so be sure to have your camera ready! Those wishing to participate by releasing their own prayer star can buy a ticket in advance (¥1,200) or at the door (¥1,500). There will also be special boat cruises and plenty of food stalls to add to the festive spirit.