The park's foot bath is fed by a spring that reaches temperatures naturally high enough to hard-boil eggs in approximately 15 minutes.
The park was established specifically to honor the 150th anniversary of the founding of Jozankei Onsen.
The site includes a designated 'Onsen Tamago' station specifically designed for boiling eggs in geothermal water.
Jozan Miizumi, the park's namesake, was a Buddhist monk who dedicated his life to developing the hot springs after discovering them in the mid-19th century.
Jozankei Gensen Park is a public hot spring garden located in the Jozankei Onsen district, built to commemorate the 150th anniversary of the discovery of the area's thermal springs. The park serves as a tribute to Jozan Miizumi, a monk who founded the town’s spa history in 1866. Visitors can utilize the on-site foot bath, which is supplied with natural hot spring water piped directly from local sources. The park features an egg-boiling hot spring area where guests can boil eggs using the high-temperature water. A statue of the founder, Jozan Miizumi, stands as a central monument within the park grounds. The park is integrated into the surrounding landscape of the Toyohira River valley, offering seasonal views of the forest.
The statue of Jozan Miizumi with the seasonal forest background.
Bring a raw egg and a small net or bag to take advantage of the geothermal egg-boiling station.
Carry a small hand towel in your bag to dry your feet after using the public foot bath.
Visit during the autumn foliage season for the most visually striking backdrop of the surrounding valley.
Do not attempt to use the egg-boiling pool for bathing, as the water temperatures are significantly higher than the foot bath.
Rinse feet before entering the foot bath; do not wear shoes or socks in the water.
