By Amanda Taylor
Hot springs, or onsen, are a big deal in Japan. Not to be confused with sento, which are simply public baths using heated tap water, onsen are comprised of volcanic spring water that's full of natural minerals, giving health benefits like clearer skin, detoxification and even weight loss (it's said that bathing in the hottest onsen water can burn the same amount of kilojoules as jogging). As winter descends, they also become desirable destinations for daytrips and weekend breaks, so we've rounded up six of the best. If you're a first-timer, be sure to check out our article on 'Onsen etiquette'.