Suwako is the largest lake in Nagano prefecture but it also features one of the world's largest geysers. It is also a region whose hot spring waters are so abundant that their use goes far beyond being used in onsen resorts. With its natural surroundings and varying climate, the lake and its surrounding area draws 6.4 million visitors annually and offers a slightly different mix of sights and attractions than those in other such settings.
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Suwako
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