abstract beach black churned-up dark distinctive foot-prints frame grainy gray grey impressed impressions imprinted imprints indented indistinct light lines marked marks patterns prints rough sand shadow-lines shadows soft soft-sand sunlight sunshine surface surfaced surfaces terrain texture textured textures tracks unfocused vague 4WD-vehicles churn churning coast coastline colors colours conservation conserve conserving damage damaged damaging driving dug-up environment environmental environmentally-unfriendly four-wheel-drive ocean ocean-edge off-road off-road-driving protect protection safety tire-tracks track traction tyre-tracks vehicles vehicles-permitted wild activity curved curving over-printed tangled vehicle-tracks background sea shore storm wallpaper water wave