Because many trees and rocks that resemble a married couple can be found on the premises, it is said that staying at Ginkonyu will bring long-lasting marital harmony and happiness. Over time, this pleasant rumor began to spread, and recently, its use has been increasing not only by those celebrating their silver wedding anniversary but also by newlyweds.

The facility uses five hot spring sources that gush out from within the premises, either individually or blended. The water quality varies slightly depending on the source, including weakly alkaline sodium-chloride and bicarbonate springs.