beach coast coastline color colored colors colour coloured colours green greenery growing growth layers levels ocean ocean-edge ocean-waterline plants rocks rocky rough scrub sea seashore seaside shade shadows shapes shore shoreline shrubbery shrubs Sizes stones stony sunlight sunshine surface surfaces surfacing textured textures tidal tide tides trees varied variety water angles appearance building capping cleaning cover covered covering danger dangers ear protection edge exterior external height high high-pressure improvement maintenance pressure pressure-cleaning renovating renovation repairs restoration restoring risks risky roof roof-area roofing rooftop safety skies sky spray tiles tiling tools tough wet work workman