One way to warm up during winter, without blowing your summer holiday budget, is to try a natural outdoor bath.
From the Blue Lagoon in Iceland to Budapest's selection of city baths, these hot springs can turn cold temperatures into a treat.
HuffPost UK Lifestyle has found eight from around the world, where you can enjoy the contrast of hot and cold air, while the steam soothes your soul.
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Please note: We recommend hiring a dressing gown and flip flops, as the seconds between changing room and water can be nippy!