Lights over Gangneung, Korea: around 2018

The poster says they filmed distant lights over the sea from a beach in Gangneung, Korea, on a summer evening in 2018. They recall the lights turning, joining into one, and then splitting apart again. The poster wondered whether they might have been cargo ships.

The clip shows a small light over the sea, but the single frame does not identify its source or verify the reported movement. The cargo-ship explanation remains a possibility raised by the poster, not a confirmed identification.