Possible Clues:

• Masses of frozen water
• Large masses of floating ice
• Only small parts of them are seen above water
• Masses of ice floating at sea
• Only small parts of them can be seen above the water
• Masses of frozen water and lettuces
• North Atlantic hazards
• One culinary tip good in beers, soup, salads
• Only small parts can be seen above the water
• Huge, cold shipping hazards