Yesterday (2015 August 15th) was 終戦記念日 (VJ day) and there were ceremonies for that around Japan.
It was also the day that 灯篭流し (“tourou-nagashi“) is done at the Sumida River in Tokyo.
灯篭流し (“tourou-nagashi“) is a ceremony that is usually held at the end of O-bon (“O-bon” is mid-August usually (some places have it in July) and is a ceremony tradition to honor relatives and ancestors who’ve passed away.)
灯篭流し (“tourou-nagashi“) means “floating lanterns“. On this ceremony, people can purchase a lantern and write a message to relative(s) who have passed away and then the lanterns are lit and set afloat on the river.
It wasn’t easy to take photos that do it justice, but it looks beautiful.