The Sado Gold Mine was the largest gold and silver mine in Japan. It has a 400-year heritage spanning economic ups and downs from its opening in 1601 to its closure in 1989. The industrial remains of the gold mine including tunnels and mining infrastructure are designated both as a national treasure and as part of Japan’s Heritage of Industrial Modernisation. The site is a nominated candidate to the UNESCO World Heritage List.

The remains of the gold mine are a popular location for history enthusiasts. The abandoned buildings remind visitors of Hayao Miyazaki's movie “Castle in the Sky”. Visitors can spend all day here to exploring the site’s photogenic scenery.

The gold mine offers two routes that visitors can explore (no reservation is required, each route takes 30 to 40 minutes). These routes are open every day. Large groups or anyone particularly interested in the history of the mine can make a reservation for one of two guided tours. The guided tours are available from April to November and take about 100 minutes. One is available for groups of over 10 people, the other is only for visitors over 13 years.