Silence (climb)

Silence
Project Hard
Hanshelleren Cave, in Flatanger Municipality, has some of the world's hardest climbing routes including Change 9b/+ , and Silence 9c (5.15d).
LocationFlatanger Municipality, Norway
Coordinates64°29′23″N 10°49′07″E / 64.48972°N 10.81861°E / 64.48972; 10.81861
Climbing areaHanshelleren Cave, Flatanger Municipality
Route typeSport climb
Vertical gain45 metres (148 ft)
Pitches1
Rating9c (5.15d) (proposed)
Bolted byAdam Ondra
First free ascentAdam Ondra, 3 September 2017

Silence (also Project Hard), is a 45-metre (148 ft) severely overhanging sport climbing route in the granite Hanshelleren Cave in Flatanger Municipality, Norway. When Czech climber Adam Ondra made the first free ascent on 3 September 2017, it became the first rock climb in the world to have a proposed climbing grade of 9c (5.15d), and it is an important route in rock climbing history. To complete the route, Ondra undertook specialist physical and mental training to overcome its severely overhanging terrain. As of April 2025, Silence remains unrepeated.