Related Clues:
- Polar ice sheet
- Glacial chunk
- Sheet of Arctic ice
- Polar bear hangout
- Chunk of drift ice
- Ice to glide audibly
- Flat mass of floating ice
- Polar bear bearer
- Raft for a polar bear
- Large frozen sheet
- Hazard on an Arctic voyage
- Field of drifting 29-Down
- Cold mass
- Sheet that won't keep you warm?
- Polar bear's perch, perhaps