Nayuta | 8C+ Boulder problem at Gero

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Japan / Gifu

Quick Info

Grade	8C+
Type	Boulder problem
Crag	Gero
Country	Japan 🇯🇵
History
First ascent	Dai Koyamada (4th Apr 2017)
Recorded repeats	2

Quick Info

Grade	8C+
Type	Boulder problem
Crag	Gero
Country	Japan 🇯🇵
History
First ascent	Dai Koyamada (4th Apr 2017)
Recorded repeats	2

The first 8C+ in Japan. Around 30 moves.

The boulder was vandalised in 2018. Several holds were broken off, leaving larger holds.

References

[1] http://koyamada.dai.hiho.jp/?eid=867696#gsc.tab=0

Contributors

remus

12 contributions since 1st July 2022.

Mono

11 contributions since 11th March 2026.

Sponge

2 contributions since 12th July 2025.

ben_sandi

2 contributions since 26th June 2026.

tvhc_tvhc

1 contribution since 1st October 2026.

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Ascents

3 successful ascents recorded.

	Climber	Style	Ascent Date	Suggested Grade
	Dai Koyamada	Boulder \| worked	4th Apr 2017	8C+
	First ascent.
	References [1] https://www.ukclimbing.com/news/2017/04/nayuta_8c+_first_ascent_by_dai_koyamada-71028 [2] https://vimeo.com/ondemand/nayutav16
	Yuta Imaizumi	Boulder \| worked	Oct 2022
	Second ascent.
	References [1] https://www.instagram.com/p/CjktGulJGm2/ [2] https://www.youtube.com/watch?v=gODHt1aX91Y
	Ritsu Kayotani	Boulder \| worked	Before 30th Sep 2026
	References [1] https://www.instagram.com/p/Dd6tbxsCX6Z/