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Lake Tazawa-ko is a crater lake which at 423.4 meters in depth is the deepest in Japan.

Lake TazawaSurrounded by a gentle range of hills, which provide the lake with a bright atmosphere, the almost perfectly circular lake is filled with superbly clear sapphire-blue water, inviting us to sink below its surface.

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Map of Tazawako

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    Places near Tazawako