aeration clouds club rooms community cricket ground dark skies equipment grass grassed area greens lawn aeration machinery maintaining maintenance men mowing oval playing field preparation preparing renovating renovation shadows sporting area sports field sports oval suburban suburbs sunshine tennis courts track trail truck utility vehicles walkers work working workmen dog strollers strolling tractor arena berlin chairs empty football large match nobody Olympic Games Olympic Stadium panorama racecourse soccer sport sports spring track and field athletics tribune view appropriate-behavior appropriate-behaviour black black and white canine communicating communication control controlled dogs hold-on informing lead leash outdoor-sport outdoors pets playing-fields public rules sign sporting-events sporting-field sporting-fields sports-oval under-control warning white barbecue BarBQ clearing open picnic area protection provision public area recreation recreational seats shade shelter sunlight table trees vegetation active activities advice clothing coach coaches coaching football-field footballers grassed outdoor practice-match readiness ready sporting-area sports-green teenage Teenagers uniform uniforms young-people youth