This happened to my wife and I (so immediately knew it was real). Turns out it was container ships at the nearby port. I live in Hamburg and the port is quite h

This happened to my wife and I (so immediately knew it was real). Turns out it was container ships at the nearby port. I live in Hamburg and the port is quite huge. One night I decided to bike down to the river and it became immediately obvious. Not an empty boat, though knowing did make it easier