BBC Earth - The kind of winter swimming where you have to crack the ice with a sledgehammer before you dive in might sound like a recipe for pneumonia. But experts agree
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At the Olympics of ice water, swimmers race in deadly cold - The Boston Globe
The ice breakers. How Scotland's ice swimmers taught me to love the cold. | HeraldScotland
Ice swimming in Finland: Is that why it's the happiest country? | CNN
Ice swimming in Finland: euphoric experience and a great combination with sauna
The health benefits of 'ice swimming' are still unclear | Popular Science
Winter swimming - Wikipedia
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What is ice swimming really like? - Tales of Annie Bean | Travel, Fitness and Adventure Blog
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Ice swimmers challenge for places on world stage at British Champs
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Outdoor swimming kit for Autumn and Winter.
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