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    The Kanmon Straits Tunnel is a really unique attraction because you can walk directly from Honshu to Kyushu. The route is a little over 700 meters and takes about 15 minutes on foot.

    Inside the undersea tunnel, you can also see the marker showing the border between the two prefectures, where many people stop to take photos. In just a short walk, you can cross between two prefectures at once. It’s both novel and fun, and definitely a special experience worth trying.

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