Original video here. I have mirrored this video with permission.
The second ship is the Conti Lyon and was about 26 Kilometres away.
Thanks to roohif for his excellent detective work finding the ship and the distances.
Also for producing this image which clearly shows how much of the ship is hidden.
I also recommend watching this detailed analysis by Sam Salhi. Though not in English it is very well presented and the images speak for themselves.
A short clip I came across recently.
I was advised that the viewing location was about 10 meters elevation so you can’t blame the swell or the waves.