angles appearances city plaza concrete contemporary contrast contrasting cool cooling flow flowing levels light low modern movement pool pools reflections ripples rippling shade shadows surface water water feature waterfalls wavelets wet beach colors colours Jetty 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 aloe-vera flora foliage fronds garden green greenery layered layers maintained multi-level papyrus placed placement planned plants reeds rockery selected selective shaped shapes stones terraced vegetation water-plants abstract appearance backdrop background backgrounds clumps dark grass grasses growth late-afternoon reflective river river-sand riverside rushes sandy shining shore shoreline sunlight sunshine water-levels wavlets wetlands-plant anchored buoy data-collecting-buoy dissolved-oxygen electronic-data-transfer estuarine estuary fish-kill-mitigation floating-device fresh-water improving-understanding monitoring-buoys moored oxygen-levels salinity salt-water scientific-advisory solar-panel solar-powered stationary tide water-quality water-quality-management coast coastline color colored colour coloured pebbles sea seashore seaside Sizes stony variety