An LNG tanker was proceeding in the open sea at a speed of approximately 21 knots in good visibility. At 05:14 the lookout spotted a light and reported it to the OOW as a ‘fishing boat’, approximately 5 degrees to port. About 22 minutes later, the lookout reported that the fishing boat was right ahead and that he believed that it was close to their vessel.
The OOW used his binoculars to try and estimate the distance of the fishing boat. He believed that it was still quite some distance away....
https://www.marineinsight.com/case-studies/real-life-incident-vessel-collision-in-good-visibility/