Hole-in-the-ice swimming, also known as ice swimming, is a popular activity among thrill-seekers and adventurers during the winter season. However, if you're looking for more varied ways to describe this phenomenon, there are many synonyms to choose from. Some options include polar bear plunging, frost swimming, arctic swimming, frozen pond diving, and winter water therapy. No matter what you call it, this chilly activity has gained popularity among those looking for a unique way to test their endurance and embrace the winter season. So, grab your swimsuit and towel and take the plunge into the icy waters with these synonyms for hole-in-the-ice swimming.