The oldest lava underneath Kirishima is believed to be around 1 million years old. Countless eruptions caused the lava to accumulate and gradually transform the landscape into what you see before you. At Kirishima Shinsuikyo you can experience the rich history of the magnificent Kirishima volcano.
As you stroll along the promenade along the Kirishima River, you’ll come across a massive rock wall with orderly, vertical cracks on the opposite side of the river. When lava flows from a volcano it cools and hardens slowly, forming regular cracks with a polygonal cross-section. This creates a stunning view, suggestive of a sculpture crafted by nature.
In ancient times, worshippers would purify themselves at this river, which was once known as “Haraigawa.” There used to be an old pathway along the river to the shrine that connected the main hall of Kirishima Jingu Shrine to Yama-jinja Shrine. People must have walked along this river, admiring the magnificent rock walls, before climbing up the secluded path to pay their respects.
Continuing downstream, you’ll find an artificial waterfall. This waterfall is said to function as a dam, designed to mitigate debris flow in the event of a future eruption.
Volcanic eruptions are not just a relic of the past; they’re linked to the present and future as well. As you walk, you’ll sense that Kirishima’s history is completely intertwined with the volcanoes.
Photo 1: Kirishima Shinsuikyo
Photo 2: Columnar joint wall formed by cooling lava
