They can be recognized by their flat tops. Bergy Bits form from pieces that have broken off tabular icebergs or when tabular icebergs collide. Smaller Bergy Bits are about the same size as a small car and the larger ones are about the size of an apartment building. The final category is Brash Ice decayed fragments less than seven feet. Our first port-of call would be Deception Island, a still active horseshoe shaped caldera with hot springs, fumaroles, and steaming beaches.
Deception Island is a land of fire and ice.
During the whaling year's, ships reported the island appeared to be on fire. Another report states the water inside the caldera became so hot paint on ships anchored there began to blister.