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Fat underwater creature, 4 letters
Petty officer's income, 6 letters
The Spruce Goose, for one, 8 letters
Coast Guard equipment, 8 letters
Flier with pontoons, 8 letters
Island-hopper's transport, 8 letters
It has floats and flies, 8 letters
The Spruce Goose was one, 8 letters
An airplane that can land on or take off from water, 8 letters
Fliers with pontoons, 9 letters
They're supported by floats, 9 letters
Transportation between some Alaskan cities, 9 letters
Amsterdam or Algiers, 7 letters
Anchorage, or other anchorage, 7 letters
Baltimore or New Orleans, 7 letters
Baltimore or New Orleans, e.g., 7 letters
Boston or Philadelphia, 7 letters
City with ships at docks, 7 letters
Coastal city, often, 7 letters
Harbor seal loses tail swimming into ship's side (7), 7 letters
Helsinki, Hamburg or Havana, 7 letters
Longshoreman's venue, 7 letters
Mobile or Galveston, 7 letters
New Orleans or New York, 7 letters
New Orleans or New York, to ships, 7 letters
New York City or Los Angeles, 7 letters
New York City, e.g., 7 letters
New York or New Orleans, 7 letters
Where ships come in, 7 letters
Where the buoys and gulls are, 7 letters
A place where ships can take on or discharge cargo, 7 letters
Cities on coastlines, 8 letters
Long Beach and Texas City, e.g., 8 letters
Longshoremen's workplaces, 8 letters
New Orleans and Rotterdam, 8 letters
16th-century Spain, for one, 8 letters
Britain in the 19th century, e.g., 8 letters
Nation with a strong navy, 8 letters
What an armada provides, 8 letters
England and Spain, historically, 9 letters
Nations with formidable navies, 9 letters
Nations with great navies, 9 letters