Many of the lights on this coast are placed so high as to be frequently obscured by（）.

An orange flag showing a black circle and square is a（）.

The information on ocean voyage planning with routeing details for powered and sailing vessels is likely found in（）.

On an Atlantic Ocean voyage from New York to Durban，South Africa，you should expect the Agulhas Current to present a strong（）.

The latest known details of lights are given in（）.

The program of graphical predictions of height against time for a period of up to seven consecutive days is contained in（）.

A person who sees someone fall overboard should（）.

After the boat is at the top of the davit heads，the davit arms begin moving up the tracks and are stopped by the（）.

For details of these and other lights the larger scale charts and Admiralty Lists should be （）.

Mariners not entering the port are（）to keep at least one mile off.