Asia caves coast coastline color colored colors colour coloured colours distance distant expanse foliage growing growth Hong-Kong-islands Hong-Kong-waters islands layers levels natural ocean outcrop plants rock formations rocks rocky rough sea seashore shade shadows shapes shore shoreline Sizes stones stony sunlight sunshine variety vegetation water waterline beach Hong Kong islands Hong Kong waters national marine park access alert authorities authority availability available boat boating-control communicating communication control deployment equipment fast flag foam froth Hong-Kong law law-&-order light movement naval observation on-duty on-the-job order patrol patrolling power presence regulations responsibility responsible secure security speed transport wake watercraft white after-deck background boats cabin cables capstan-drums Catamaran clouds deck harbor harbour Haze hazy lines marina maritime masts metal moored motor-boats mountains nautical outdoors recreation rigging ropes safety-equipment sailboat sailing tethered tied-up transportation travel vessels waves wealth wires wood yacht club yachts chairs coastal edge edges facilities fishermen fishing fishing-rods floating frames framework greenery huts leisure men mountainside opportunities people platforms pontoons recreational shelters slopes sloping supplies trees catamarans crew direction enjoyment fun guard rails multihulled multihulls nylon outdoor-sport passengers pleasure craft rails recreational sailing relaxing rigging equipment rope safety sail sea-going yacht ship under-sail women yacht yachting