Iwagoya Boulder, Horai, Aichi, Japan
8 successful ascents recorded.
| Climber | Style | Ascent Date | Suggested Grade | |
|---|---|---|---|---|
| Dai Koyamada | Boulder | worked | 11th Nov 2003 | 8C | |
| First ascent. | ||||
| Ryuichi Murai | Boulder | worked | 7th Apr 2019 | ||
| Third ascent. | ||||
References |
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| Mishika Ishii | Boulder | worked | 3rd May 2019 | ||
| Fourth ascent. | ||||
| Motochika Nagao | Boulder | worked | Before 1st Jan 2020 | ||
| Second ascent. | ||||
References |
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| Kazuma Ise | Boulder | worked | 4th Feb 2020 | 8C | |
References |
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| Shinichiro Nomura | Boulder | worked | 20th Mar 2020 | ||
References |
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| Yuta Imaizumi | Boulder | worked | 23rd Mar 2025 | ||
| Jun Shibanuma | Boulder | worked | |||