Sailing on a cruise ship as a passenger or working on board any type of ship either in the navigating or engineering department can be a really enjoyable experience. There is a vast expanse of sea all around you. The ship is designed to be very safe and there are equipments such as lifeboats to deal with any emergency situation. Yet it may so happen that all of a sudden someone may fall into the sea. This could be due to slipping, jerky motion when standing near the edge of the deck or possibly someone just pushed you while you were enjoying and imitating like the Titanic couple (see adjacent figure). Just imagine the plight of a person (even if he is the best swimmer or a F1 Powerboat Racing champion) who suddenly finds himself/herself surrounded by a vast expanse of the sea.

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In the above case, the situation where a person has fallen “over the board” is known as man overboard (it applies to female falling overboard as well). Needless to say this is a pretty critical situation and steps need to be taken to rescue the person fallen overboard using various techniques including light and smoke signals and sending out an MOB boat if available.