eroding soil, subsoil and bedrock at a pebble beach near sand wick and hillswick in northmavine, shetland, uk.

bedrock blue cliff coast coastal coastline cross earth environment eroding erosion formation geological geology grass ground hillswick horizontal islands landscape layer layers natural nature north outdoor parent people red rock sand scenic scotland section sheer shetland soil strata structure subsoil substratum summer topsoil travel underground undersoil unsafe view water wick