For over a hundrad years the Bar pilots in San Fransisco have been bringing in some of the biggest ships in to harbor safe and sound. Most of the Giant container ships, and huge luxury cruise lines relinquish control of there ships to these highly skilled pilots. I was lucky enough years ago to accompany one of those individuals on a little visit for his retirement. We all see the super tankers and container ships on tv, but in person they are beyond words. They seem to not move in the water, like little portable islands. An amazing experience.