Udo Shrine Overview
Udo Shrine (Udo Jingu) is a unique Shinto shrine built inside a sea cave along the Nichinan Coast in Miyazaki, perched on cliffs facing the Pacific Ocean. Its striking vermilion architecture tucked within the cave walls makes it one of the most visually arresting shrines in all of Japan — and one of the few that sits directly at the edge of the sea.
The shrine is dedicated to Ugayafukiaezu no Mikoto, a Shinto deity from the region, and is believed to have powers over fertility, safe childbirth and harmonious romantic relationships. According to legend, this is where the sea goddess Toyotama-hime gave birth, and the cave’s walls are said to bear the mark of her sacrifice — breast-shaped rocks known as Ochichi Iwa, from which water drips and is used to make a local confectionary called Ochichi-Ame, believed to bring good luck to expectant mothers and those hoping to start a family.
One of the shrine’s most beloved traditions is the undama toss. Visitors are encouraged to throw clay undama balls into the center of the Turtle Rock below — men throwing with the left hand and women with the right. Landing one in the target is said to make your wishes come true. Five undama balls can be purchased at the shrine for ¥200.
Also worth seeking out inside the cave is the Nade-Usagi patting rabbit statue. The rabbit is said to have been a servant to the gods of the shrine, and patting it is believed to bring good fortune and good health.
Best Times To Visit Udo Shrine
Udo Shrine is open year-round and can be visited in any season. Summer sun can be strong, so a hat and sunscreen are recommended, and on rainy days the stone steps can be slippery — shoes with good grip are advised regardless of season.
The terrace outside the cave is also a popular spot for seeing the first sunrise of the new year, making it a meaningful destination during the hatsumode season in early January. Plan to spend at least 30–60 minutes at the shrine to take in the cave, the ocean views, the Ochichi Iwa,and the undama toss.