Yudomari Onsen
Yudomari Onsen is located on the same coast as the Hirauchi Kaichu Onsen and shares similar spectacular views. However, unlike Hirauchi this hot spring separates the genders with a fence in the middle of the bath. It can also be enjoyed for longer periods as its temperature is around 39°C. The locals of Yakushima gather on clear nights under starry skies to discuss the latest news, giving Yudomari a more local and communal atmosphere than Hirauchi.
Another hot spring among the rocks farther down the path toward the sea has even more magnificent seaside views. However, that one is not gender-separated.
Yudomari Onsen is open twenty-four hours a day, seven days a week. A donation of 100 yen to go towards cleaning, and maintenance is encouraged. Visitors should note that the temperature of the water can be much lower in late autumn and winter, and should use caution when entering the baths at that time.