Sidestrand and Trimingham Cliffs is a 133.9-hectare (331-acre) biological and geological Site of Special Scientific Interest south-east of Cromer in Norfolk, England.

[1][2] It is a Geological Conservation Review site.

[3][4][5] It is in the Norfolk Coast Area of Outstanding Natural Beauty.

[6] This crumbling cliff exposes both Pleistocene sediments and a rich assembly of invertebrate fossils dating to the late Cretaceous.

It also has several rare beetles and the Red Data Book parasitic herbaceous plant purple broomrape.