aerial aerial roots beach coast coastline colors colours dunes glistening glossy green greenery growing growth layers levels low tide mangrove growth mangroves natural ocean ocean edge ocean waterline pebbles plants receded receding receding tide rocks rocky root network Roots rough salt-resistant sand sand dunes scrub security strength strong support tidal tides water waterline accumulations algae attached clinging color colour covered ebb-and-flood ebb-and-flow filamentous holdfasts light low-tide pounding sea seashore seaside seaweed shadows shapes shore shoreline slimy slippery spray sticking stones stony stuck sunlight sunshine surf surge surging tide velvety waves wet bare boulders chalk cliff destroyed destruction England erode erosion Great Britain kent landscape low nature nodules Remains remnants rock uncovered white worn blue boat boats bow cloud clouds coruna eu europe float frame galicia horizon horizontal horizontally line linear pope Portiño rope ropes saavem ship sky small solid Spain transportation alone blackpool consider contemplate dawn distance distant empty english exercise lone loneliness lonely one single space think thought vacant walk walker colored coloured expanse footprints industrial activity industrial area Jetty outcrop people pollution prints recreation relaxing rock formations sandy shade ships Sizes strolling variety waders wading birds construction contrast crane Denmark drilling energy engineering equipment esbjerg exploration floating harbour industrial industry nautical offshore oil platform port power production rig sandbank sandrag shipping skyline supply technology vessel waterfront well wharfage windcarrie