Re the gigantic waves Alex was just talking about, here is a link to some astonishing images
Story of the ship Selkirk Settler: storm photos are at the bottom:
http://www.boatnerd.com/pictures/fleet/spruceglen.htm
Here are possible explanations of gigantic waves:
http://gcaptain.com/rogue-waves-a-call-to-action/
The logs ramblings can be cryptic, so we have added: