activities angles architectural-elements architecture chemical-sanitation chlorinated covered exercise filled full glass heated hot-tub hydrotherapy indoor-pool indoors inside interior jacuzzi leisure light lighting lit maintained monitored paddling-pool recliners reclining recreation reflections relaxation sanitized seating shelter sheltered spa-pool swimming swimming-bath swimming-pool undercover wading-pool warm water windows adults billard-Hollandais board championships children competitions competitive disks entertaining entertainment family fun game goals hobby individual-players indoor-sport international-tournaments jakkolo marked-slots mathematics maths multiple-players multiplying participants participating players polished pucks rough rules schulbach score scores scoring shoot shooting sjoelbak sjoelen sliding slots smooth smooth-finish sport tournaments aqua blue clean clear color colour cool deck-chairs dusk edges holidays hotel lights open outdoors palms plants pool poolside potted-palms private recreational reflection relaxing responsibility responsible ripples rippling rooftop safety Singapore sky surface surrounding surrounds tropical views water's-edge wet accommodation appearance appearances background boat buildings colors colours contrast contrasting culture grass grassed-area homes houses lawns motor-boat moving outdoor outside park public-park river river-views riverside scenery scenic shade shadow shadows shrubbery shrubs sunlight sunshine surfaces transport transportation travel trees vegetation waterways