Last seen in:
Related Clues:
- Helmsman's headache
- Titanic's problem
- Titanic's downfall
- Mass in Arctic waters
- Ice sheet asea
- Floating ice mass
- Arctic navigation hazard
- Seagoing ice sheet
- Only about 10 percent of it is visible
- It keeps its head above water
- Penguin hangout
- Much of Greenland
- Sea lane hazard
- Ice chunk
- Floating ice hunk