longa geo north of collaster on unst, shetland, uk - the rock is of the westing gneiss formation - psammite, gneissose

aquatic blue cave cleft cliffs coast coastal coastline collapsed collaster deep eroded erosion fault geo geology gneiss gneissose gully horizon inlet islands isolated layered layers long longa metamorphic natural nature north outdoor people psammite remote rock scenic scotland scottish sea seascape shetland shetlands sky spectacular strata sunny sunshine tourism unst view wave westing