No, you’re not dreaming and, yes, this glorious expanse of glowing lights is real.
Those lights are actually bioluminescent shrimp, better known as sea fireflies, or, in Japan, as “umibotaru.”
Visible every year from May until the end of October, they live in the sand around very shallow sea water and are often seen floating between the extremes of high and low tides.
Williams and Galione caught the creatures using raw bacon and jars, and the pair positioned them accordingly for their series.
The animals were not harmed and returned back to the water shortly thereafter.