 It ends in a waterfall consisting in a series of cascades, each between 0.5 and 1.5 metres high, that have formed due to the unequal hardness of the different beds of the underlying rock.The seaward section of Peppercombe is at the eastern end of the Hobby to Peppercombe biological Site of Special Scientific Interest (SSSI), while the coast section to north-east is part of the Mermaid's Pool to Rowden Gut geological SSSI.A noticeable feature of the sea cliffs between Peppercombe and Portledge to the north is their distinctive red colour.