The Sisu project is an unclimbed line in Finland first tried by Nalle Hukkataival. It is incredibly hard: Nalle was only able to do a handful of the moves over the course of many sessions.
[1] http://nalle-hukkataival.blogspot.com/2010/04/sisu-project.html
1 recorded ascents, including 1 unsuccessful ascent.
| Climber | Style | Ascent Date | Suggested Grade |
|---|---|---|---|
| Nalle Hukkataival | Boulder | did not finish | ||
References[1] https://www.instagram.com/p/BcX-gR8llwj/ [2] A short film which features some footage of Nalle trying the line Kylmää kiveä - Suomikiipeilyn tarina osa 4 of 4 |
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