icebergs
Usage examples:
-
Much to my astonishment, the first objects which encountered my eye were four icebergs floating detached but close together at a distance of about three miles on my side of the north- east trend of the island.
W. Clark Russell in "The Frozen Pirate". -
The many icebergs which encumbered the sea filled me with anxiety.
W. Clark Russell in "The Frozen Pirate".