Slåttdalsskrevan is a 200 meter long, 30 meter deep and 7 meter wide passage that divides Slåttberget into two parts. It is the influence of the sea that has formed the crevasse. The slightly weathered diabase passage has been eroded, while the surrounding rock, consisting of red Nordingrå granite, has been preserved. ATTENTION! Slåttdalsskrevan has been closed to hikers for safety reasons since 2023. However, there is a path around the crevasse with viewing and photo points.