Pinnacle icebergs are tall, narrow ice formations that rise sharply from the water. They typically have a pointed or spire-like shape, resembling a mountain peak. These icebergs are often formed from the calving of glaciers, where chunks of ice break off and float into the ocean. Unlike tabular icebergs, which have flat tops, pinnacle icebergs can vary greatly in height and width. Their unique shapes can create stunning visual displays, especially when illuminated by sunlight. Pinnacle icebergs are commonly found in polar regions, such as Antarctica and Greenland.