Kozagawa Ichimai-iwa
古座川の一枚岩
A giant single rock wall by the Kozagawa River, about 100 m high and 500 m wide and designated a National Natural Monument. Its reflection in the clear stream is spectacular.
Ichimai-iwa lies in Kozagawa Town, just north of Kushimoto. It is a massive rhyolite formed by volcanic activity, about 100 m high and 500 m wide. It is considered one of Japan's largest single rocks and is designated a National Natural Monument. The clear Kozagawa River flows past it, and on sunny days the cliff is reflected in the water. On the opposite bank, the Michi-no-Eki Ichimai-iwa roadside station offers parking and dining, and in summer there are canoes and river play. Entry is free. It is about 30 minutes' drive (about 20 km) from Kushimoto. Buses run rarely, so driving is recommended, and it can be combined with Mushikui-iwa.
Opening hours
All day
Nearby sights
- Kushimoto Marine Park
- Muryo-ji Temple & Okyo-Rosetsu Museum
- Hashikui-iwa Rocks
- Mushikui-iwa Rock
- Kushimoto Ohashi Bridge
- Cape Shionomisaki
- United States–Japan Friendship Memorial Museum
- Umi-kongo Cliffs