I went to the Saga International Balloon Fiesta 2 weeks ago. It was really a sight to see. In the morning they launched dozens and dozens of hot air balloons at once. It was BEAUTIFUL. They had over 100 hot air balloons in attendance from many different countries and throughout the almost week long event they counted over 900,000 visitors. During that time you can see hot air balloons over my city during the day, the balloonists have competitions for rather large prizes, and there is a large festival-like area with food and entertainment. It is COMPLETELY FREE to attend, there is no charge for going to the grounds and enjoying it. You can get up quite close to the balloons too.