Sapporo Underground Street, which stretches from Sapporo Railway Station to Boye Metro Station, passes through Datong Metro Station for more than two kilometers. It is the longest underground street in Japan. It's mainly because of the climate in Sapporo, especially when walking on the ground in winter, it's easy to be disturbed by rain and snow, so the underground passage is built in all directions, completely like a labyrinth. Whether it's shopping or eating in the Underground Street, it's not boring to spend a day in it.