This facility is
located in Sado Island, and it is necessary to cross from Niigata-city by ferry.
Placer gold was
discovered in this area around 1100, and a large amount of gold dug in the
1600s. In this facility, you can experience gold panning in the pool.
Home page of Sado
Nishimikawa Gold Park
http://www.e-sadonet.tv/~goldpark/
Sado-city tourist information
site
https://www.visitsado.com/spot/detail0009/