From A Wiki of Ice and Fire
Cannibal Bay is a legendary place said by sailors to lie somewhere in the Shivering Sea. It is said that ships enter Cannibal Bay only to find themselves trapped forever as the sea freezes behind them. Legend also claims some of the thousand ships entombed there are inhabited by the descendants of the original crews, who survive by feasting on the flesh of the newly trapped sailors.
Maester Margate has suggested that the tales of Cannibal Bay may be explained as distorted reports of ice dragon activity.
- ↑ 1.0 1.1 The World of Ice & Fire, Beyond the Free Cities: The Shivering Sea.