Volcanic Ash Layer near the Mikagawa River（Mikagawa-no Kazanbai-so）
Evidence of massive volcanic eruptions in ancient times
You can see a volcanic ash layer along a section of the Ohechi route of the Kumano Kodo; the ash accumulated here are some of those ashes that were released during a series of massive eruptions that occurred 27,000 to 29,000 years ago in a volcanic system in Kagoshima Prefecture called the “Aira Caldera.” A signpost that indicates the location of this ash layer stands near the entrance gate to the forest trail, which is located close to the Mikagawa River.
Take the Shirahama Town Community Bus and get off at “Mikagawa”[三ケ川] stop. (Reservation needed. The bus does not operate on Sundays or public holidays.) It is 45 minutes’ walk from the stop.
* To make a reservation to ride the Community Bus, please call the Shirahama-daiichi-koutsu (0739-42-2916, Japan).
Mifune Matsuri Festival – a Finale of the Kumano Taisha Grand Shrine Matsuri Festival (One of the Annual Grand Festivals Held at Kumano Hayatama Taisha Grand Shrine)
（Kumano Hayatama Taisha Reitai-sui, Mifune Matsuri）