When a ship navigates in head seas, it's hull is subjected to sever shocks which induce violent ship motions. As well trained and duly experienced navigators, we have the ability to provide our response to this through alteration of the course and speed of the ship to the required extent.
However, to accomplish safe navigation in head seas, it's advisable to have more reliable ship handling techniques backed by theoretical knowledge as to why these phenomena are created and what shall be done to avoid the generation of these critical effects in addition to possessing sea-going experience.
This instructional video is highly recommended to the ship navigators and particularly to the bridge teams of those vessel regularly navigating in the above mentioned conditions. By watching this video, they will find some information that will be of practical use and help them provide safe navigation of their vessels. The video will also serve as a great training tool for the newcomers and students who shall use it as a very effective supplementary training material.