angles beach colors colours concrete Jetty levels long jetty low tide ocean perspective perspectives posts pylons railings rock formations rocks rocky rough safety sand security shipping ships strength strong support support legs textures tidal tides water contained cool cooling display enclosed feature flow flowing fountain fountains greenery movement moving outdoor outdoors paved paving plants pool regularity ripples rippling spectacle splash splashing spouting spray spraying squirting streaming surface surfaces surrounds tiled turbulence turbulent wall water-feature wet coast coastline color colored colour coloured distance distant expanse people receded receding receding tide sandy sea seashore seaside shore shoreline Sizes strolling sunlight sunshine waders wading waterline blue circular round Asia caves foliage growing growth Hong-Kong-islands Hong-Kong-waters islands layers natural outcrop shade shadows shapes stones stony variety vegetation Hong Kong islands Hong Kong waters national marine park accretions bio-chemical-accretionary-structures cementation columnar cumulative-structures excretions formations formed forming fossils high-saline-levels lake layered living-fossils living-rocks microbialites microorganisms park rock-structure sedimentary-grains shallow-water shaped slow-growth stromatolite stromatoliths structures abstract background covered exposed light open outside patterns reflection reflections river rivers-edge riverside sparkle sparkling texture vibrancy vibrant wallpaper water's-edge waterflow waterways wavelets waves