Of course I am back in Japan yet again - Oct and Nov 2018 - Page 5 - 594

Its a canal inside canal city which is surrounded by canals. Those floating things are strings of millions of lights, presumably turned off while the woman is singing so that she gets all the attention.

Camera Details: SONY, ILCE-7M2
Settings: 1/13 at f/4.5, ISO 1600, 28 mm
Date: 10 November 2018 Time: 20:14:07