What is the punishment for those buried in ice in the region of Caina?

In Dante's "Inferno," the region of Caina is part of the Ninth Circle of Hell, specifically reserved for traitors. Those condemned to this icy environment are punished by being trapped in a frozen lake, which represents their cold-hearted betrayal. The punishment of cold and suffocation reflects not only the physical discomfort of being encased in ice but also symbolizes the emotional distance and isolation brought about by their treachery. The chilling temperature signifies the lack of warmth typically associated with human relationships, emphasizing the consequences of betrayal against loved ones. Therefore, this punishment aligns with Dante's themes of justice, where the severity of the sin is directly mirrored by the nature of the punishment, showcasing a fitting irony in their eternal suffering.