First glowing waves at maldives and then now river of lights on Tokyo?! i bet  the swamp and canals will be glowing next. :D

On the evening of May 6, 100,000 LED lights were sent drifting down the Sumida River in Tokyo. Intended to resemble fireflies, the lights were the finale of the Tokyo Hotaru Festival/Tokyo Firefly Festival.

It surely does light up Tokyo's Sumida River! I wonder why blue?! the waves on maldives are also blue, can anyone try pink or maybe orange? :D