– Granite promontories separated by sandy tombolos.
– Weathered granite outcrops form distinctive carns.
– Low, rocky coastline with sandy bays.
– Mixed vegetation including maritime heathland. Grassland and areas of dune grassland, all susceptible to colonisation by bracken and gorse.
– Populations of nationally rare plants and breeding birds.
– Rich in archaeology including many scheduled monuments.
– Derelict bulb-fields on Gugh are testimony to former agricultural activity.