Silence | 9c Sport route at Flatanger Cave

Norway / Trøndelag / Flatanger kommune / Flatanger

Also known as Project Hard. Grade breakdown: 8b G 8C M 8B B 7C+ G 7B.

Silence is a route established by Adam Ondra in 2017. It is the first ever sport route to be graded french 9c, assuming repeat ascentionists confirm the grade.

The crux of the route is a notoriously strange boulder problem. There are a few sequences, but Adam's original method involves feet-first jamming through the slopey crack.

Contributors
38 contributions since 16th February 2021.
14 contributions since 17th March 2026.
1 contribution since 18th June 2026.

Lists


Pics + Vids

No pics or vids yet.


Ascents

1 successful ascent and 3 unsuccessful attempts recorded.

Climber Style Ascent Date Suggested Grade
First ascent.

The first 9c in the world and a new benchmark in sport climbing. Adam spent a lot of time training specifically for the route, going as far as to strengthen his calves so he could get a better rest out of the kneebars.

References

[1] Send Film https://www.youtube.com/watch?v=ZRTNHDd0gL8

[2] Photo by Keith Sharples https://www.instagram.com/p/C8fK3MPB7eH/?img_index=1

Pete had a little play on the crack section to see if he could work out a sequence.

References

[1] https://www.youtube.com/watch?v=fQWHvDvtMFs

Suggested grade breakdown: 8b+ G 6C M 8C+ M 8A+ B 7C+ G 6B.

References

[1] Live Q&A https://www.youtube.com/watch?v=BNAfAujGczo

[2] Footage from Will's first trip in 2025 https://www.youtube.com/watch?v=ujb7YRfE-7k

[3] Will found new beta for the crux in his second trip https://www.instagram.com/reel/DYM9-ezKidJ/

[4] Linking the crux sequence for the first time https://www.youtube.com/shorts/LMIqR4A_eHs

References

[1] Podcast with Alex Megos https://www.youtube.com/watch?v=_7DLZ0wAhwU

[2] 5 video YouTube playlist of his process (2022): https://www.youtube.com/playlist?list=PLfD18zMI-Pk8iXcqbVtq2S1YPc9BvLJe-

[3] Progress update (2024) https://www.youtube.com/watch?v=NCmfytvG6n8