Eigenji Onsen, known as Happu no Yu, is a hot-spring bath in Higashiōmi, Shiga Prefecture, not far from Lake Biwa. The warm water, at 40°C, feeds an indoor pool, an outdoor rotenburo and a sauna.
Insider tip — Happu no Yu, the spring of great happiness, is tucked beside the Eigenji valley where Eigenji Zen temple presides over maple and cedar forest. The autumn foliage here ranks among Shiga Prefecture finest, and the gentle thermal spring completes a perfect day in the Suzuka mountain foothills.