One of my friends owns a boat yard, railway, and fish
One Sunday I pulled down in the yard, and saw him walk out to the end of the T-head and start untying lines.
He climbed across the first 90 some foot shrimp boat, to the middle boat of equal size... Started the engine
Climbed back across to the dock
, untied the last of the lines and move the raft of 3 90 footers from one T-head to his other dock
It sounded like a the murder of a detroit diesel
was going on at the time with rolling boils of black soot, and the high howl of a turbo spooling up and waiting to reverse direction.
He laid the raft up against the T-head, climbed back across to the dock side boat, dropped a big loop over the dolphin and backed down... and did the stern.
You can single
hand as big a boat as you've the balls to untie from the dock, or 3 of them at once...
I made it over to the far dock about the same time he dropped the stern line on... Another day at the office for him, but probably the most impressive feat I've seen to this day.
Second only to him tying a boat off with "not quite a round turn around the piling and the bitter end draped up across the top of the pole and laid down the other side... and walking off. Still tied the next morning, no idea on that one and he's not much for teaching...