banister Barrañan beach bridge clouds coruna dune dunes eu galicia handrail ocean outdoors path plants sand sea sky Spain vegetation walking water wave waves wood coast coastline colors colours dune-flora flora grass grasses green greenery growing growth levels low tide natural ocean edge ocean waterline receded receding receding tide rough salt-resistant sand-dunes Sandbar scrub tidal tides waterline conservation conserve conserving cultivating cultivation environment environmental nature planting protect protection reclaim reclamation replanting birds currents distance distant dune-grass enjoyment foreground foreshore hot island islands light outside perspectives public recreation relaxation relaxing sandy seashore seaside small summer sun sunlight sunshine tourists view views visitors warm wet backdrop background coastal contrast contrasting foliage leafy leaves ocean-edge ocean-waterline