The azaleas spread beneath the cliffs of Mt. Mifuneyama in the azalea valley shine brightly. Each azalea's sphere light is autonomous shining brightly and then fading, as if breathing slowly.

When people pass by or approach the azaleas, the color of the light changes and a new color resonates out. Then, the light of that tree radiates out and is transmitted to nearby azaleas in the valley. The propagated light of the azaleas will again resonate, and the color will continue to resonate to nearby azaleas in the valley.

These azaleas are said to have been created by Motozo Sakamoto of the Arima Clan azalea breeding in the late Edo Period during the Tenpo Era (1830 - 1843 C.E.). The azaleas were planted right at the opening of Mifuneyama Rakuen in 1845 C.E.