|Specified type||Country designation|
|Designated date||January 24, 2012|
|location||Miyako City Hitachi Hamacho others|
|owner||Outside Miyako city|
|home page||Miyako city (Jodogahama)|
In Miyako Bay, located in the central part of the Sanriku Coast, at the northeast end of the Usushiki peninsula that protrudes into the bay from the west bank, Jodogahama, which consists of white blocks of rock and its inner Kashiwahama The beach unfolds. Jyodogahama was established as a peninsula at the Virem glacial period, which reached about 10,000 years ago, and then, in the process of regressing and retreating repeatedly, a peninsula consisting of rock formations of the current sharp shape and an inner bay consisting of Kashiwahama It is considered to have been established.
A group of rock mass and Kashiwahama in the inner bay consists of rhyolite (Ryurogan cancer), and it is blackish such as mudstone (Takanohama) like Kashiwahama (Takonohama) developed on the north side of the Uchisu Peninsula. It has a beautiful milky white color that shines in contrast to the rocky beach. Among them, the top of the large rock mass is hardly affected by waves, and high trees such as red pine and shrubs such as yamatsutsuji can be seen, and herbaceous species such as myrtle and oak lily stick to the rock surface below that. Growing in The contrast between the milky white rock formations lined up in a row as if it were striking the sky from the sea surface and the green trees etc. that gently color the upper half of the rock formations make the Jodogahama landscape stand out .
The landscape of Jodogahama with such unique and beautiful shapes and colors has come to be widely introduced as a scene of "Jodo" shaped by nature in the writings of Edo period. The earliest one is the Han Poetry that Reikyuryuko of Joanji Temple priest of Miyako inhabited at the end of the 17th century, and it is said that it was named by Ryuko on the eastern face of the rock mass even now There is a remains of a stone statue called "Sai no Kawahara" beach and "Aoi no Kawahara Jizo".
In addition, in modern times, Kenji Miyazawa visited Jodogahama in 1917, and admired the scenery of Kashiwahama used as a seabed of kelp. I left a five-neck tanka with a total of five necks, including "Let's spread".
As described above, Jodogahama, which consists of the peninsula where milk-white blocks are continuous, and Kashiwa Beach in the inner bay, is a landscape of the beach that has become known as a scene of “Jodo”, and it is a modern history It has been introduced to the literature, and since modern times, it has been widely recognized as a scenic spot on the Sanriku coast, as it has been reminiscent of Kenji Miyazawa's tanka.