an untouched sandcastle at the edge of the beach with the incoming tide slowly washing it away

untouched sandcastle edge beach incoming tide slowly wash away shore structure submerge scenic sculpture salty sandstorm decay sunset design fragile collapse unstable sandplay tumble transient ruin castle unsteady crumble water summer shorebreak children swash creation drift fragment vanish perish sundown erosion disappear memory shoreline splinter dissolve damp sandy flood transcience